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【单选题】
二氧化碳分子的、转动和振动自由度的数目分别为A.
3，2，4
B.
3，4，2
C.
2，3，4
D.
4，2，3
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反馈参考答案：
举一反三
【单选题】They are happy that they will on their journey next month.
A.
certify
B.
embark
C.
munch
D.
Enumerate
【简答题】He objects to (treat) ______in such a bad way.
【简答题】Two strangers were sitting together in a plane . They were on a long journey . One of the men was a teacher . The other was a farmer . They sat without talking for a while , then the farmer said , “ L...
【单选题】Every minute should he made full use of_______our lessons. ?
A.
studying
B.
to study
C.
study
D.
being studied?
【单选题】They have ______________ on a journey round the world.
A.
set off
B.
set back
C.
set up
D.
set aside
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