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搜题
【单选题】
登革病毒的传播媒介是A.
伊蚊
B.
库蚊
C.
按蚊
D.
蜱
E.
以上都不是
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【判断题】When the demand of a product exceed its supply, the price goes down. When the supply of a product exceeds its demand, the price goes up.
A.
正确
B.
错误
【单选题】The law of supply refers to the fact that, all other things remaining the same, when the price of a good rises,
A.
the supply curve shifts leftward.
B.
the supply curve shifts rightward.
C.
there is a movement up along the supply curve to a larger quantity supplied.
D.
there is a movement down along the supply curve to a smaller quantity supplied.
【单选题】The law of supply states that, other things equal, when the price of a good
A.
falls, the supply of the good rises.
B.
rises, the quantity supplied of the good rises.
C.
rises, the supply of the good falls.
D.
falls, the quantity supplied of the good rises.
【单选题】The weight of a newborn has to do with the supply of oxygen even when he was still in his mother’s womb．
A.
Right
B.
Wrong
C.
Not mentioned
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