【題目】Let A = J e1(1nx)2 dx ， then

 

答案： 0 < A < 1

 

 

Let a=∫1 0 x5(1-x3)1/3 dx，then

 

答案：0<A<1

 

 

Let A be the area between the curves y = sin x and y = sin 2x from x = 0 to x = π 。then

 

答案： 2 < A < 3

 

 

For implicit function 2xy+ex+y -2=0 dy/dx (0,ln2)=？

 

答案： -1 - ln2

 

 

Suppose the demand and supply functions for a certain goods are given

by：

QD=10-P

QS=P-4

Find the total economic surplus generated at the market equilibrium

 

答案： 9.0

 

 

for the function f(X)=3√x(x-7)²

which of the following statements are true ？

 

答案： f (7) = 0 is a relative minimum

 

 

Assume that we have a demand curve of the form.log(Q)=a-b×log(P)+c×log(I), where Q=quantity, P=price, I=income, and a, b, and c are positive constants. The income and price elasticities for the demand curve represented above are always

 

答案： constant

 

 

A decrease in the supply

 

答案： raises its equilibrium price and decreases its equilibrium quantity.

 

 

A short piece of information used to authenticate a message is commonly referred to as

 

答案： MAC

 

 

A firm in pure competition would shut down when

 

答案： price is less than average variable cost.

 

 

A competitive firm will tend to expand its output so long as：

 

答案：  Marginal revenues is greater than marginal cost.

 

 

A multitasking operating system developed in the early 1970s at Bell Laboratories：

 

答案： UNIX

 

A freeze that destroys half of the water lily crop in Tainan would likely raise the price of water lily.

 

 

答案： reducing the quantity demanded for water lily and increasing the demand for tea

 

A profit-maximizing firm in a competitive market is able to sell its product for $7. At its current level of output, the firm’s average total cost is $10. The firm’s marginal cost curve crosses its marginal revenue curve at an output level of 9 units. The firm experiences a

 

答案： loss of exactly $27.

 

 

Apples and oranges are substitute goods. A freeze in Florida destroyed a good portion of the orange crop. Ceteris paribus, the price of

 

答案： both apples and oranges will rise.

 

 

Two goods are complements if a decrease in the price of one good

 

答案： increases the demand for the other good.

 

 

Levi’s jeans sell for $100 a pair. Suppose at the profit maximizing quantity, Levi’s average total cost was $110 and Average variable cost was $55, which statement is true？

 

答案： Levi’s will produce in the short run but go out of business in the long run

 

 

Raisin bran and milk are complementary goods. A decrease in the price of raisins will

 

答案：increase consumer surplus in the market for raisin bran and increase producer surplus in the market for milk.

 

 

Economic scarcity arises from

 

答案：  limited resources and expanding wants.

 

 

What kind of virus is typically hidden in MS word file？

 

答案： macro

 

 

In long-run equilibrium of a competitive market, the number of firms in the markets adjusts so that all of the market demand is satisfied at a price equal to

 

答案： minimum average total cost

 

 

Under which of the following conditions would the interdiction of illegal drugs result in a decrease in the quantity of drugs sold and in a decrease in total spending on illegal drugs by drug users？

 

答案： The price elasticity of demand for illegal drugs is 1.3

 

 

Nick can purchase each milkshake for $2. For the first milkshake purchased Nick is willing to pay $4, for the second milkshake $3, for the third milkshake $2 and for the fourth milkshake $1. What is the value of Nick's consumer surplus？

 

答案： 3

 

 

CDC character set contains 64 characters, To represent any possible 10 character string needs at least

 

答案： 60

 

 

In the short run the magnitude of the own price elasticity of demand for ice cream：

 

答案： is lower than in the long run.

 

 

What would happen to the equilibrium price and quantity of coffee if the wages of coffee-bean pickers fell and the price of tea fell？

 

答案： Price will fall and the effect on quantity is ambiguous

 

 

「Last October, due to an early frost, the price for a pumpkin increased by 10 percent.As a result, the quantity demanded decreased from 2 million to 1.5 million.」 Based on this statement, the

 

答案： demand for pumpkins is elastic.

 

 

Good A and good B are substitutes in production. The demand for good A increases so that the price of good A rises. The increase in the price of good A shifts the

 

答案： supply curve of good B leftward.

 

 

You are an economist for the Taipei City Subway Commission. Presently, the price of a subway ride is $80, and 250,000 seats are filled weekly. The income elasticity of demand is -0.60. If a recession lowered area incomes by 5％, how many additional seats per week would the subway need？

 

答案： 7,500 seats

 

 

Producer surplus is the ：

 

答案： difference between revenue and variable cost of production.

 

 

Consumer surplus is：

 

答案： the difference between the price one is willing to pay and the price one has to pay

 

 

A simple linear demand function may be stated as Q= a-bP+cI where Q is quantity demanded , P is the product price, and I is consumer income. To compute an appropriate value for c, we can use observed values for Q and I and then set the estimated income elasticity of demand equal to.

 

答案： c(I／Q)

 

 

The figure shows the market for books before and after a sales tax is introduced. The tax on books is ____ a book, buyers pay ____ of tax per book, and the governments tax revenue is ____.

 

答案： $1.20; $0.80; $12

 

 

If the price of the Walkman is below the equilibrium price, there will be a _______ of Walkmans and the price will _______.

 

答案： shortage; rise

 

 

If resources are used efficiently, then ____.

 

答案： consumer surplus plus producer surplus is maximized

 

 

If price exceeds average costs under pure competition, in the long run ,______ firms will enter the industry, supply will ______, and price will be driven ______.

 

答案：more; increase; down

 

 

(In C) int x=1; if (x=2) x=3; the value of x is ____.

 

答案： 3

 

 

Converting from type ____ to type ____ will result in the loss of data.

 

答案： int, char

 

 

Each standard library has a corresponding：

 

答案： Header file

 

 

Crude oil can be refined into home heating oil or gasoline. If very cold weather caused the price of home heating oil to increase, then

 

答案：the equilibrium price of gasoline would rise.

 

 

Bonds that have an option exercisable by the issuer to retire them at a stated dollar amount prior to maturity are known as：

 

答案 ：Callable bonds.

 

 

For a good that is a necessity,

 

答案： demand tends to be inelastic.

 

 

When demand increases and supply decreases, the

 

答案： equilibrium price rises, and the equilibrium quantity might increase, decrease, or remain constant.

 

 

 When marginal profit equals zero.

 

答案： profit is maximized.

 

 

Which of the following statements is true？ Oligopolists ：

 

答案：  all of the above.

 

 

Which of the following would be most likely to cause the demand for cheese to shift from D0 to D1？

 

答案： an increase in income, assuming cheese is a normal good

 

 

Which of the following statement is normative？

 

答案： Higher taxes are needed to support education.

 

 

Which paradigm most accurately describes BASIC？

 

答案： Imperative or procedural

 

 

Which of the following acronyms refers to ports on laptop computer that accept small cards that server as expansion boards？

 

答案： PCMCIA

 

 

Which of the following factors would not cause the demand curve for a given product to shift？

 

答案： Changes in price.

 

 

Which of the following is the amount a person would invest now to receive a greater amount in the future？

 

答案： Present value

 

 

Which of the following is an imperative programming language？

 

答案： Ada

 

 

Which of the following system is used to manage information about customers, interact with customers, and to improve a company's relationship with its customers？

 

答案： CRM

 

 

The expansion of capital that can occur in the long-run but not in the short-run, means that the long-run supply is

 

答案： more elastic than the short-run supply curve.

 

 

The most fundamentaleconomic problem is

 

答案： scarcity.

 

 

The owner of a local hot dog stand has estimated that if he lowers the price of hot dogs from $2.00 to $1.50, he will increase sales from 400 to 500 hot dogs per day. Using the midpoint formula, the demand for hot dogs is

 

答案： inelastic

 

 

The statement “An increase in the price of gasoline will lead to a decrease in the amount purchases” is

 

答案 ： a positive statement

 

 

The demand for a product tends to be inelastic if.

 

答案： a small proportion of consumer's income is spent on the good.

 

 

The kinked demand curve model was developed to help explain.

 

答案： rigidities in prices in oligopolistic industries.

 

 

The kinked demand curve model was developed to help explain.

 

答案： rigidities in prices in oligopolistic industries.

 

 

The supply curve for a good or service shows the sellers’

 

答案： minimum acceptable price.

 

 

The demand for Chocolate Chip Cookie ice cream is likely quite elastic because

 

答案： other flavors of ice cream are good substitutes for this particular flavor.

 

 

The kinked demand curve model assumes that a firm's rivals will

 

答案： follow the firm's price decreases but not its price increases

 

 

The fallacy of composition is evident in which of the following statements？

 

答案： If each farmer works harder all farmers will be richer.

 

 

The price elasticity of demand for cigarettes is 0.4. If government wants to reduce smoking by 10 percent, by how much should it raise the price of cigarettes by imposing a tax？

 

答案： by 25 percent

 

 

The prisoners’ dilemma is a simple game in which：

 

答案： both parties are made worse off by following their own self-interests.

 

 

Suppose A, B and C are three points on a linear demand as in the figure below. The comparison of price elasticities is

 

答案： A>B>C

 

 

Suppose the price elasticity of demand for oil is 0.1. price elasticity of supply for oil is 0. In order to lower the price of oil by 20 percent, the quantity of oil supplied must be increased by

 

答案：2 percent.

 

 

Suppose there are only two firms supplying in the market and they produce a homogeneous good. Two firms produce the good with the same constant marginal cost. Firms compete by setting price simultaneously . The equilibrium price of both firms must

 

答案： equal to the marginal cost.

 

 

Suppose that the price of eggs increases from 75 cents to $1.00 per dozen and as a result a typical farmer experiences a decrease in egg sales from 300 to 200 dozen per week. Using the method of average values, the price elasticity of demand is

 

答案： 1.4

 

 

Suppose the price of a good rises. When will the resulting substitution effect reduce the quantity demanded of the good？

 

答案： Always

 

 

Suppose the price elasticity of demand for tickets of Taiwan High Speed Railway (THSR) is 1.5.Ceteris paribus, when THSR reduces its prices, its revenue

 

答案： will go up.

 

 

Suppose the demand for gourmet coffee can be represented by a linear demand curve. When income rises cause the demand curve for gourmet coffee shift to the right parallelly：

 

答案： becomes less elastic at the price that prevailed before the change in income

 

 

If cigarettes and marijuana had been found to be substitutes, a tax placed on cigarettes would

 

答案： increase the demand for marijuana

 

 

If a fall in the price of good A increases the quantity demanded of good B,

 

答案： A and B are complements

 

 

If a good is produced using inputs for which there are no substitutes, the good's

 

 答案： elasticity of supply is likely to be small.

 

 

If the market price is higher than the equilibrium price.

 

答案： a surplus exists and the market price will fall until it equals the equilibrium price and the surplus is eliminated.

 

 

If resources are used efficiently, then _____.

 

答案： consumer surplus plus producer surplus is maximized  

 

 

If the quantity demanded increase as peoples incomes increase, the result of

 

【解答】  a normal good.

 

 

If a price increase of 5 percent increases the quantity demanded of another good by 2 percent, the goods must be and the cross elasticity of demand equals

 

答案 ： substitutes; 0.4.

 

 

「微管仲，吾其被髮左衽矣。」的「微」字字義與下列何者相同？

 

答案： 「微」夫人之力，不及此

 

 

(甲)子夏問曰：「『巧笑倩兮，美目盼兮，素以為絢兮。』何謂也？」子曰：「繪事後素。」曰：「禮後乎？」子曰：「起予者商也！始可與言《詩》已矣。」(乙)子夏曰：「日知其 所亡，月無忘其所能，可謂好學也已矣。」根據這兩段引文，子夏應列在孔門四科中的哪一科

 

答案： 文學