水平固定管对接组装时，组对间隙一般应上小下大。( )
参考答案：错
. ____ by the thought that she was suffering a heart attack, she screamed for help.
A．Terrifying
B．Terrified
C．Being terrified
D．Having terrified
XXY-160液压马达是（）式。
A.齿轮式
B.叶片式
C.轴向柱塞
