受弯构件只有当跨度（）或支座附近有较大的集中荷载时，才有可能产生剪切破坏。
参考答案：很小
— The mountain village is so beautiful.
— Yes. Moreover, ________the villagers live, there is fresh air.[ ]
A. that
B. where
C. when
D. whether
正常开口度是（）
A．＞50mm
B．30～39mm
C．30mm
D．＞40mm
E．40mm
