离心泵启动时，为减小启动功率，应将出口阀门关闭，这是因为流量增加而（）增大。
参考答案：功率
Titanic 3D moved all audience to tears once again, ________ our attention to Cameron ‘s films and the definition of true love.
A．turning
B．to turn
C．turned
D．being turned
挖孔桩的优缺点有哪些
