靠近泵吸入口的吸水管,应保持()倍管径的直管段。
A.1~2
B.2~3
C.3~4
D.4~5
参考答案:A
—Where your neighbor live?
—He lives the second floor.
A.does, on B.do, on C.do, in
同业存款是否应计提利息?