箍筋的弯钩构造要求采用135度弯钩，弯钩的平直段取值为（）。
A. 10d；85mm中取大值
B. 10d；75mm中取大值
C. 12d；85mm中取大值
D. 12d；75mm中取大值
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按照构件类型柱可以分为（）。
A. 框架柱
B. 芯柱
C. 中柱
D. 梁上柱
Skimming means reading quickly to get the main idea of the text.
A. 对
B. 错
Scanning means to read to located general information.
A. 对
B. 错
The key point in scanning is that the reader has something in his mind and he should ignore the irrelevant parts when reading.
A. 对
B. 错
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