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【多选题】
《关于臭氧层物质的蒙特利尔议定书》规定的受控物质为A.
CFC
B.
哈龙
C.
HCFC
D.
自然工质
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反馈参考答案：
举一反三
【单选题】Junk messaging has been a headache for years, ＿＿the action taken by the authori-ties has not yet produced the results expected
A.
as
B.
but
C.
so
D.
before
【单选题】Thousands of people turned out into the streets to _________ against the local authorities’ decision to build a highway across the field.
A.
contradict
B.
reform
C.
counter
D.
protest
【单选题】33 According to the author, it is hard for a society to work without
A.
a recognized authority.
B.
enough money.
C.
examples.
D.
changes.
【单选题】听力原文： The time is 7 o'clock, and this is Amely Brown with the news. The German authorities are sending investigors to discover the cause of the plane crash late yesterday on the Island of Tenariff. th...
A.
At night.
B.
At noon.
C.
In the morning.
D.
In the afternoon.
【单选题】__________ 查看材料
A.
And how about website authoring skills?
B.
I think I have all the information I need!
C.
I' m afraid I've never used those CGI things.
D.
First of all， tell me about yourself.
【单选题】He had either to leave the country immediately or to surrender himself to the Nazi authorities, and had no other ______.
A.
alternative
B.
hope
C.
resource
D.
approach
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