朱元璋比较重视安民、恤民,在建国后,确立了()的原则。
A、民贵君轻
B、民本
C、以宽治民
D、吏为民役
参考答案:C
Last week I met my old friend Li Ming, but I forgot __________ him for his telephone number.[ ]
A. ask
B. asking
C. and ask
D. to ask
要确认清管器是否发出,应先关闭球筒进气阀,然后()。
A.关闭输气阀
B.打开球筒放空阀
C.关闭输气生产阀
D.打开球阀