在安装使用前,设计压力小于10MPa的压力容器用得液位计应进行()倍液位计公称压力的液压试验。
A.1.0
B.1.25
C.1.5
D.2
参考答案:C
—Is there _________ in today's newspaper?
—Yes. It's raining heavily in the south of China. [ ]
A. anything new
B. new something
C. new anything
编辑网格的次物体有几个()
A、3个
B、4个
C、5个
D、6个