泵喷射泵流量与（）有关
A.吸入压力
B.排出压力
C.工作流体压力
D.A+B+C
参考答案：D
I'm not sure which restaurant ______ because I haven't been here for long. [ ]
A. to be eating
B. to eat at
C. to eat
D. eating at
除油罐投运时，应打开罐底及收油槽内的（）阀门。
A.取样
B.放气
C.采暖伴热
D.排污
