地下水除铁除锰采用喷水装置时,每()m2水池面积上宜装设4~6个向上喷出的喷嘴,喷嘴

题型:单项选择题

问题:

地下水除铁除锰采用喷水装置时,每()m2水池面积上宜装设4~6个向上喷出的喷嘴,喷嘴处的工作水头一般采用7m。

A.5

B.6

C.8

D.10

考点:环境科学技术及资源科学技术水质工程学水质工程学题库
题型:单项选择题

Many a time,the Chinese government urged that American government stop selling advanced weapons to Taiwan,but it__________ listen,__________Sino-US relations.

A.won’t;damaging

B.wouldn’t;damaging

C.shouldn’t; to damage

D.wouldn’t:to damage

题型:单项选择题

— _____ when has the country been open to international trade?

— 1978, I suppose. [ ]

A. Since

B. In

C. From

D. After

题型:单项选择题

甲公司2010年7月1日向银行借入资金100万元,期限12个月,年利率为6%,到期还本,按月计息。该公司7月31日应计提的利息为( )万元。

A.0.5
B.2.5
C.3
D.6

题型:单项选择题

An inflatable liferaft can be launched by().

A.the float-free method ONLY

B.breaking the weak link on the painter

C.throwing the entire container overboard and then pulling on the operating cord to inflate the raft

D.removing the securing straps

题型:单项选择题

将手机上网设置为CMWAP访问,通过发送()至10086,获得手机阅读WAP地址

A.6800

B.8008

C.8080

D.0000

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