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先张法施工的预应力构件，如果配筋较多，可采用砂轮锯来逐根切断钢筋。( )

A. 对
B. 错

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Please give me a call as soon as possible. Would you please ______ as soon as you come back

结构脚手架承受的施工荷载不应大于2kN/m2。( )

A. 对
B. 错

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A. 对
B. 错