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【判断题】
putchar("A") 的功能是输出字符 A 。A.
正确
B.
错误
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举一反三
【单选题】If the supply of a good is relatively elastic, changing the price causes
A.
a relatively small change in the amounts that buyers are willing to buy.
B.
a relatively small change in the amounts sellers are willing to sell.
C.
a relatively large change in the amounts sellers are willing to sell.
D.
no change in the amounts sellers are willing to sell.
【单选题】Behind bad luck comes good luck. So something good happened _____ you..
A.
in
B.
to
C.
for
D.
with
【单选题】If the demand for donuts is elastic, a decrease in the price of donuts will
A.
increase total revenue of donut sellers.
B.
decrease total revenue of donut sellers.
C.
not change total revenue of donut sellers.
D.
There is not enough information to answer this question.
【简答题】直链淀粉遇碘呈( )色,支链淀粉遇碘呈紫红 色,糖原遇碘呈( )色
【简答题】直链淀粉遇碘呈蓝色，支链淀粉遇碘呈（）
【简答题】淀粉遇碘可以发生灵敏的颜色反应,直链淀粉遇碘呈 ,支链淀粉遇碘呈 。
【简答题】直链淀粉遇碘呈______色，支链淀粉遇碘呈______色，糖原遇碘呈______色。
【判断题】If we observe that when the price of chocolate decreases by 10%, quantity demanded increases by 25%, then the demand for chocolate is price elastic.
A.
正确
B.
错误
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