某压力容器按承受压力为1MPa，则属于（）容器。
A.低压
B.中压
C.高压
D.超高压
参考答案：A
室外给水管道的特点是螺纹和焊接连接很多。( )
I was ashamed ______ lied to my mother. [ ]
A. to be
B. of having
C. that
D. of being
