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【多选题】
下列 PVC 热稳定剂中,初期稳定性好而后期稳定性差的有( ) 。A.
镉皂
B.
钡皂
C.
锌皂
D.
钙皂
E.
镁皂
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举一反三
【单选题】听力原文：As an increasing number of students now indulge themselves in cyber games, the government is taking measures to prevent students from haunting Internet bars. (27)
A.
More and more students now play cyber games in Internet bars after class, of which government failed to take notice.
B.
Due to the influence of cyber games on students, certain policies are adopted to prohibit students from frequenting Internet bars
C.
As students are crazy about cyber games, more and more Internet bars have been set up to meet the demands from students.
D.
The government has been taking measures to shut down as many Internet bars as possible.
【单选题】To cyber-enterprises, the key may be this : a virtual shop needs much the same attention and innovation ____ a real one.
A.
like
B.
as
C.
just like
D.
as like
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