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【单选题】
公匍运用市场力量制定高于边际成本的价格是因为：A.
当边际收益等于边际成本时，利润达到最大化水平，而向下倾斜的需求曲线使得边际收益低于价格。
B.
这些公司从不在边际收益为负的有弹性的需求区域运营。
C.
它们面临的有效需求曲线是水平的，表明它们有能力制定高于市场出清价格的价格。
D.
当边际成本等于边际收益时，利润达到最大化水平，而向下倾斜的需求曲线使得边际收益高于价格。
E.
规模报酬递增，以及随之降低的平均成本意味着边际成本总是超过平均成本。
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【单选题】听力原文：M: What would you do if you heard a strange noise in the middle of the night'? W: I'd lie awake a little while, waiting to see if it happened again. And if it did, I'd get up. Q: How would you de...
A.
Courageous.
B.
Lazy.
C.
Curious.
D.
Cowardly.
【单选题】听力原文：M: What would you do if you beard a strange noise in the middle of the night? W: I'd lie awake a little while, waiting to see if it happened again. And if it did, I'd get up. Q: How would you des...
A.
Cowardly.
B.
Anxious.
C.
Lazy.
D.
Courageous.
【单选题】听力原文：M: What would you do if you heard a strange noise in the middle of the night? W: I'd lie awake a little while, waiting to see if it happened again. And if it did, I’d get up. Q: How would you des...
A.
Cowardly.
B.
Anxious.
C.
Lazy.
D.
Courageous.
【单选题】--What would you like to have, meat or fish? --______________.
A.
Either will do
B.
Yes, I like meat
C.
Yes, I like fish
D.
No, they are not my favorite
【简答题】标高数值以 为单位,一般注至小数点后 位(总平面图中为二位数)。
【简答题】总平面图中标高的数值以 为单位,一般标注至小数点后 位。
【单选题】what would happen at meal time if you remembered eating a lot in the previous meal?
A.
You would probably be more picky about food.
B.
You would not feel like eating the same food.
C.
You would have a good appetite.
D.
You would not feel so hungry.
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