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【判断题】
在螯合物中，中心原子的配位数一定不等于配体的数目。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】______, Charles doesn't look happy.
A.
For all his large bank account
B.
Instead of his large bank account
C.
However his large bank account
D.
Let alone his large bank account
【多选题】电子商务网站绩效中的社会效益评价指标主要包括（）
A.
电子商务网站营销推广力度
B.
电子商务网站业务模式优化效果
C.
本地区吸引国外新用户及资金的增长率
D.
对上下游商务伙伴开展电子商务的带动作用
【单选题】I would rather______out to look for a job instead of moping around here everyday.
A.
to go
B.
going
C.
went
D.
go
【单选题】You look tired! working in door you should be out for a walk. [ ]
A.
In front of
B.
Ahead of
C.
Instead of
D.
Instead
【单选题】What you should do, instead, is ________and look for a solution to the problem. [ ]
A.
cheer up
B.
come up
C.
break up
D.
cut up
【单选题】Look at the heavy rain. Let’s watch TV at home ______ going shopping. [ ]
A.
rather than
B.
instead of
C.
instead
【单选题】.You look tired .______ working indoors you should be out for a walk.
A.
Because of
B.
Instead of
C.
Thanks to
D.
As for
【简答题】网站推广效果的评价指标主要包括( )A. 网站被主流搜索引擎收录 B.整合性 B. 网站在主流搜索引擎中的排名 D. 获得其他相关网站链接的数量
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