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【单选题】
甲烷的空间结构是A.
正三角形
B.
正四面体形
C.
正方形
D.
正六面体形
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反馈参考答案：
举一反三
【单选题】In a cumulative frequency polygon:
A.
the class frequencies are converted to percents.
B.
the cumulative frequency for the first class limit is zero.
C.
we add the class frequencies starting with the first class.
D.
all of the above.
【简答题】The Internet has an increasing ____________(影响) over our lives.Many people all over the world use it every day.
【单选题】I keep medicines on the top shelf, out of the children’s .
A.
reach
B.
hand
C.
hold
D.
place
【简答题】累积非常规收益(cumulative abnormal return)
【单选题】Where's the bed? [ ]
A.
Thank you.
B.
I have a bed and curtains.
C.
It's near the shelf.
【单选题】Every device on the Internet has an assigned ( ) such as 128.110.192.40.
A.
MAC address
B.
Protocol
C.
IP address
D.
domain name
【单选题】Nowadays the Internet has an enormous advantage _____ the press.
A.
about
B.
around
C.
over
D.
beyond
【单选题】Every experience teaches the people something and the effects are cumulative.
A.
increasing
B.
conspicuous
C.
noticeable
D.
dubious
【单选题】Cumulative preference shares have the right to accumulate dividends in a given year if they are in arrears.
A.
正确
B.
错误
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