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【单选题】
According to the speaker, where were the first bird's nests locatedA.
On the ground.
B.
In cold places.
C.
On the highest branches of trees.
D.
Inside tree trunks.
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【简答题】Below is adapted from an English dictionary figure/fīg ? / noun, verb ●noun 1. [C, often pl.] a number representing particular amount, especially one given in official information: the trade /sa...
【单选题】Suppose the absolute value of the slope of a straight-line demand curve is 1. The price elasticity at any point along this demand curve is:
A.
equal to 1.
B.
greater than 1, but less than infinite.
C.
less than 1.
D.
infinite.
E.
none of the above are necessarily true.
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