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【多选题】
结构试验中裂缝的观测，下列说法正确的是( )。A.
观察裂缝出现可采用精度为0.05mm的裂缝观测仪等仪器进行观测
B.
观察裂缝出现可采用精度为0.01mm的裂缝观测仪等仪器进行观测
C.
对正截面裂缝，测受拉主筋处的最大裂缝宽度
D.
确定构件受拉主筋处的裂缝宽度时，构件侧面量测
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举一反三
【单选题】他们正在花园里玩,突然听到一声尖叫。
A.
They were playing in the garden when they heard a screen.
B.
When they were playing in the garden, they heard a screen.
C.
They were playing in the garden when they heard a scream.
【简答题】在人际交往过程中，如何实现有效地沟通？
【单选题】他们正在花园里玩,突然听到一声尖叫。
A.
They were playing in the garden when they heard a scream.
B.
They were playing in the garden when they hear a scream.
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