不定项选择

辛格所认可的Strong version的救助原则，要求人们对穷人给予援助，直到达到边际效用的水平。

A．错误
B．正确

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Match the words 1 to 6 to the words a) to f ) to make word partnerships.

答案：第1组： 1.
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多项选择题

What is the process of shipment？ A.
Confirming the payment terms B.
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