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【简答题】
A．Many species have moved further north. B．Many new species have come into existence. C．Many species have developed a habit of migration. D．Many species have become less sensitive to climate.
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皮皮学刷刷变学霸
举一反三
【单选题】如果供给曲线与需求曲线同时右移,则该商品
A.
均衡产量增加，价格上升。
B.
均衡产量增加，价格下降。
C.
均衡产量减少，价格向哪个方向变化不一定
D.
均衡产量增加，价格上升价格向哪个方向变化不一定。
【单选题】The term ’ship’ is used to denote a_____ employed to transport goods and persons from one point to another over water.
A.
barge
B.
vehicle
C.
tank
D.
lighter
【单选题】The economic term used to describe what is given up when choosing one alternative instead of another is __________ .
A.
Free lunch
B.
Alternative decision
C.
Second best
D.
Opportunity cost
【简答题】相爱容易相守难
【简答题】用汽油或加了洗涤剂的水都能除去衣服上的油污，分析二者的原理是 _________
【单选题】Credit, in commerce and finance, term used to denote transactions involving the transfer of money or other property on promise of repayment, usually at a fixed future date. The transferor thereby beco...
A.
hire
B.
save up
C.
put aside
D.
store
【单选题】The economic term used to describe what is given up when choosing one alternative instead of another is __________ .
A.
Free lunch
B.
Second best
C.
Alternative decision
D.
Opportunity cost
【简答题】用汽油或加了洗涤剂的水都能除去衣服上的油污，分析二者的原理是______
【简答题】用汽油或加了洗涤剂的水都能除去衣服上的油污，两者的原理是否相同？如不同，请说明二者的去污原理．
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