水泵的出水阀门多采用闸阀或蝶阀，安装在离心泵或轴流泵的出水管路上。
参考答案：对
–Have you received Jack’s plan?
–Yes, but I don’t think his plan is ____.
A．worth being considered
B．worthy to be considered
C．worthy of considering
D．worth to be considered
《女神》的作者是( )。
A．巴金
B．茅盾
C．老舍
D．郭沫若
