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【简答题】
一质点作振动,振动方程为x=Acos(2Pit+Pi/3)m。它振动的周期T =( ) s。
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反馈参考答案：
举一反三
【单选题】The leaders are discussing the problems ______ on yesterday' s meeting. [ ]
A.
come up
B.
come up with
C.
coming up
D.
coming up with
【简答题】铸造工艺流程 大体可分为( )、造芯、( )、落砂与清理 4 个环节。
【简答题】 东亚及太平洋旅游区简称东亚太旅游区,主要包括 _______ 。
【单选题】The medical team _______ two doctors and six nurses was sent to the front.
A.
made up of
B.
was made up of
C.
made of
D.
made from
【单选题】They _______ Tom to record the hit single.
A.
kept up with
B.
caught up with
C.
put up with
D.
teamed up with
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