搜题
王老师:19139051760(拨打)
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第1题

Although a teenager Fred could resist ____ what to do and what not to do
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第2题

After the new technique was introduced, the factory produced ______ cars in 2002 as in the year before.
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第3题

理想电感元件在某时刻其电压值为零，则该时刻电感上的储能一定为零。
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第4题

A survey was carried out on the death rate of those who were infected by SARS, ________were surprising.
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