【多选题】【消耗次数：1】
被世界公认的三大污染是（ ）
①
大气污染
②
水质污染
③
噪声污染
④
土壤污染
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相关题目
【简答题】
社区环境污染防治包括：水污染防治、[填空]和噪声污染防治等。
【单选题】
大气污染控制系统包括（）。
①
A.污染源、污染源控制措施、污染物在大气中的行为、空气污染的影响、法规和标准措施
②
B.集气罩、风管、净化器、风机、烟囱
③
C.污染源控制措施、污染物在大气中的行为、空气污染的影响
④
D.污染源、污染源控制措施、污染物在大气中的行为、空气污染的影响
随机题目
【单选题】
1.When hewas a boy, he used to go there and watch____.
①
to repair bicycles
②
bicycles to be repaired
③
bicycles being repaired
④
repairing bicycles
【单选题】
11.It was getting dark. I found a car____in a pool by the side of the road.
①
to be stuck
②
stuck
③
sticking
④
stick
【单选题】
11.Mrs. Black has got ____ instead of getting any better.
①
more bad
②
a little worse
③
much badly
④
a lot of worse
【单选题】
2. When we speak to people, we should be ___.
①
as polite as possible
②
as polite as possibly
③
as politely as possible
④
as politely as possibly
【单选题】
16. The jacket was so ____ that he decided to buy it.
①
much
②
little
③
expensive
④
cheap
【单选题】
19. Your room is ____ mine.
①
twice as large
②
twice the size of
③
bigger twice than
④
as twice large as
【单选题】
4. I think the story is not so ____as that one.
①
interesting
②
interested
③
more interesting
④
most interesting
【单选题】
3.This book is ____that one, but ____than that one.
①
as difficult as; expensive
②
as more difficult as; more expensive
③
as difficult as; more expensive
④
more difficult as; as expensive