断仪表空气时，气开式自调阀会（），气闭式会（）。
参考答案：关闭；打开
计算CT值的公式是根据（）
A.水的质量衰减系数
B.水的线性衰减系数
C.水的电子密度
D.水的质量密度
E.水的分子成分
-Jack got drowned in the lake and was in hospital yesterday.
-Sorry to hear that.I'm told he often goes swimming alone________his mother's objection.[ ]
A．regardless of
B．in case of
C．in view of
D．instead of
