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问题 单项选择题

由排气筒排放的颗粒物粒径小于（）时，《环境影响评价技术导则一一大气环境》推荐按气体模式计算其浓度。

A、100μm

B、50μm

C、15μm

D、μm

答案

参考答案：C

单项选择题

综合布线系统中，干线以及建筑群电缆用（）色标。

A.绿色

B.灰色

C.蓝色

D.紫色
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阅读理解

Consult the page adapted from an English dictionary and do Questions 65～68.

小题1: What does the phrase “green shoots” mean in “Green shoots have begun to appear in different markets”?

A．Signs of recovery.

B．High prices.

C．Environmental protection.

D．Change in policy.小题2:Fill in the blank in the sentence “I can’t believe this is Joshua—he’s ______ since we last met!”

A．shot out

B．shot through

C．shot up

D．shot down小题3:When you are talking about unimportant things, we say you are ______.

A．shooting yourself in the foot

B．shooting the breeze

C．shooting your mouth off

D．shooting questions at somebody小题4: Choose a word to complete the sentence “The ______, which killed a policeman and wounded a passer-by, was reported to have lasted only 13 seconds.”

A．shooter

B．shoot

C．shot

D．shooting
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