在一般情况下,离心泵工作()后应检查阻漏环的径向间隙。
A.8000h
B.4000h
C.2000h
D.1000h
参考答案:C
The thief was brought in, his hands ____________ behind his back. [ ]
A. tying
B. tied
C. being tied
D. having tied
肝胃蕴热的乳痈内服方是()
A.五味消毒饮
B.黄连解毒汤
C.丹栀逍遥散
D.柴胡清肝汤
E.瓜蒌牛蒡汤