先导型溢流阀和直动型溢流阀相比，（）说法不对。
A．更适合做定压阀用
B．动态超调量较小
C．高压大流量时调压偏差较小
D．可以远程调压
参考答案：B
Seen from the top, the stadium looks just like a bird’s nest of tree branches.
A．to make
B．made
C．making
D．being made
乘人器各阶段出现的故障在操作盘上（）显示。
A.有区别
B.无区别
C.由上到下显示
