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【简答题】
当两圆柱直径相等时。为过两轴线交点的()
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【简答题】A．B．C．D分别是乙烷、乙烯、苯、乙酸的一种， （1）四种物质中只有A不属于烃类，也不能和H 2 反应； （2）B能与溴反应而使溴水褪色，一定条件下也能与H 2 反应转化为C； （3）D不能使Br 2 的CCl 4 溶液褪色，但加入溴水中充分振荡后会出现分层现象，溴水层无色；D也不能使 KMnO 4 酸性溶液褪色；根据上述事实填写下面的空格： （1）A的分子式为_____________，A具有...
【单选题】听力原文：As an increasing number of students now indulge themselves in cyber s, the government is taking measures to pr students from haunting Internet bars. (27)
A.
More and more students now play cyber s in Internet bars after class, of which government failed to take notice.
B.
Due to the influence of cyber s on students, certain policies are adopted to prohibit students from frequenting Internet bars
C.
As students are crazy about cyber s, 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.
【简答题】A、B、C、D分别是乙烷、乙烯、苯、乙酸的一种， （1）四种物质中只有A不属于烃类，也不能和H 2 反应； （2）B能与溴反应而使溴水褪色，一定条件下也能与H 2 反应转化为C； （3）D不能使Br 2 的CCl 4 溶液褪色，但加入溴水中充分振荡后会出现分层现象，溴水层无色；D也不能使KMnO 4 酸性溶液褪色； 根据上述事实填写下面的空格： A的分子式为______，A具有______气味； ...
【单选题】What should we do if we are cyber bullied?
A.
The best way to deal with cyber bullying is to ignore it.
B.
Deal with it immediately.
C.
Explain it .
D.
Respond it.
【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
【单选题】How to protect more kids from being harmed by cyber bullying?
A.
Work with other parents to take corrective action.
B.
Talk with cyber bullies about their erous behavior.
C.
Let appropriate authorities know about the cyber bullying.
D.
Participate actively in kids’ online activities and communication.
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