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【单选题】
If the slope of the saving function is 0.27, then the marginal propensity to ________. (如果保存函数的斜率为0.27,则边际倾向为 _ _ _ _ _ _ _ _。——中文由在线翻译而来,仅供参考)A.
import is less than 0.27进口量小于0.27
B.
save is 0.73保存为0.73
C.
consume is 0.73消费是0.73
D.
consume is 0.27消费是0.27
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【简答题】乙酰胆碱作用的消除方式是____;去甲肾上腺素作用消除的主要方式是____。
【单选题】听力原文：It's supposed to shower today, isn't it? (A) No, we had no water to take a shower. (B) No, I haven't seen him around. (C) But the weather forecast is usually wrong, right? (14)
A.
B.
C.
【单选题】---When do you usually take a shower? ---I take a shower __________ the morning.
A.
at
B.
in
C.
on
D.
of
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