搜题
王老师:19139051760(拨打)
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第1题

The point in ____ by correspondence is not whether we should do it but whether we can do it. A) argument B) debate
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第2题

红外吸收光谱的条件之一是红外光与分子之间有偶合作用，即分子振动时，其偶极矩必须发生变化。 正确 错误
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第3题

The Buffalo nickel was ____ in memory of the destruction of the buffalo herds and the American Indians. A) descended
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第4题

My English professor told me to____ my vocabulary, to ____ my sentence length and to ____ my tone. A) amplify; justify;
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