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【简答题】
大气污染物按存在状态,分为颗粒物和气态污染物。常表示为总悬浮微粒物(TSP)、飘尘和降尘,其中飘尘的粒径是小于 μm的 悬浮颗粒物,飘尘又分为 和 。
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【简答题】土方开挖的原则是什么?
【单选题】听力原文：M: Sally, come downstairs, please. Look at this job advertisement. W: ( from a distance) I'm coming. Wait a moment. ( nearer ) Eric , I'm here. What's the matter? M: Look, Sally. Hem's a job adve...
A.
If the salary is high or low.
B.
If the fringe benefits are good or bad.
C.
If the working place is far or near.
D.
If the job is suitable or not.
【单选题】（ ）our general agent，you would also haye to look after the advertisin9．
A.
Being
B.
For
C.
As
D.
To be
【单选题】our general agent, you would also have to look after the advertising.
A.
Being
B.
For
C.
As
D.
To be
【简答题】基坑土方开挖应遵循的基本原则是什么？
【单选题】The general ordered his men to ______.
A.
look for his teeth and buy all of them
B.
arrest the dentist at once
C.
make all the shops stop selling teeth
D.
buy all the teeth in all the shops
【单选题】Why does the general appearance of actresses look ludicrous?
A.
Because they want their appearance in the fashion.
B.
Because the top designers want them to follow the fashion.
C.
Because the top designers want them to make fashion.
D.
Because the top designers want them to lead the fashion.
【简答题】Have a look at the paragraph to find out the examples that support the general statement. Then fill out the chart below. A welfare is supposed to cheat. Everybody expects it. Faced with sharin...
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