φ159³5的管子内流体的平均流速为2.5m/s,所以管道内的瞬时流量为()m/h。
查看答案
如果某小额信贷机构的补贴依赖指数()。说明该机构实现了财务自负盈亏。
A. 不大于0
B. 不小于10%
C. 不大于10%
D. 不小于0
公司制期货交易所设监事会,每届任期3年,监事会成员不得少于3人。()
A. 正确
B. 错误
消防水泵接合器四周()范围内,应设有供消防车取水的消火栓或消防水池。
A. (A)20mm
B. (B)30m
C. (C)40m
D. (D)50m
Your vessel is off a lee shore in heavy weather and laboring. Which action should you take?().
A. Put the sea and wind about two points on either how and reduce speed
B. Heave to in the trough of the sea
C. Put the sea and wind on either quarter and proceed at increased speed
D. Put the bow directly into the sea and proceed at full speed