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中柱柱顶钢筋锚固长度是()

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The young woman was born in America.

A. 对
B. 错

RosettaStone is the only PC-based language learning product.

A. 对
B. 错

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A. 对
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The author believes that TellMeMore is much better than RosettaStone.

A. 对
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