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【单选题】
石油沥青随牌号的增大，（ ）。A.
其针入度由大变小
B.
其延度由小变大
C.
其软化点由低变高
D.
其延度由 大 变 小
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举一反三
【单选题】The principle of decreasing marginal benefit means that as the quantity of a good consumed
A.
decreases, its marginal benefit decreases.
B.
increases, its marginal benefit decreases.
C.
increases, its total benefit decreases.
D.
None of the above answers is correct.
【简答题】陈先生是一名作家,在某杂志取得的稿酬为5k元,则需要缴纳的个人所得税为多少?
【简答题】陈先生是一名作家,在某杂志取得的稿酬为 6.1 k 元,则需要缴纳的个人所得税为 ( ) 元
【单选题】Marginal benefit _________.
A.
is the total benefit that a consumer receives from consuming an assortment of goods and services
B.
from a good is the additional cost to a consumer of another unit of the good
C.
from a good increases as more of the good is consumed
D.
from a good reflects the maximum willingness to pay for another unit of it
【单选题】All of the following statements about marginal benefit are correct EXCEPT the marginal benefit of a good
A.
is the benefit a person receives from consuming one more unit of the good or service.
B.
is measured as the maximum amount that a person is willing to pay for one more unit of the good.
C.
is equal to zero when resource use is efficient.
D.
decreases as the quantity consumed of the good increases.
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