不定项选择

依照琼斯放大效应原理，如果衣服的价格因为出口而增加了20%，则劳动的工资率也会因此增加20%。

A．错误
B．正确

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单项选择题

构件具有足够的抵抗破坏的能力，我们就说构件具有足够的 A.
刚度 B.
稳定性 C.
硬度 D.
强度

Vocabulary: Fill in the blank in each sentence with a word or phrase taken from the box. Use its appropriate form.

bet stress generosity lightning blame confront carefree give in favoritism crinkly
He had only himself to _______ for not taking better care of his pet.

答案： blame