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搜题
【多选题】
构件的荷载及支承情况如图所示,杆长l=4m。【图片】
A.
A点的支座反2.25kN,向下
B.
B点的支座反2.25kN,向下
C.
A点的支座反2.25kN,向上
D.
B点的支座反2.25kN,向上
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举一反三
【多选题】下列各类混合成本不可以表达成方程y=a+bx的是( )
A.
延期变动混合成本
B.
半固定成本
C.
曲线型混合成本
D.
阶梯式混合成本
【多选题】下列各类混合成本不可以表达成方程y=a+bx的是( )
A.
阶梯式混合成本
B.
半固定成本
C.
延期变动混合成本
D.
曲线型混合成本
【简答题】请将P30页的1,2,4,5题,包括日语题干和回答部分,以句子朗读录音的形式上传至网络教学平台。(请确保附件可以下载)。
【单选题】What a pity! Considering his ability and experience, he______it better.
A.
need have done
B.
must have done
C.
can have done
D.
might have done
【单选题】下列属于第2类危险品的是()。
A.
篮球
B.
可乐
C.
未达到额定胎压的轮胎
D.
气溶胶杀虫剂
【简答题】—Do you have the experience like that? —Well,I’ve done the work before,so I know what _________ in my new job here. A.expected B.expecting C.to expect D.to be expecting 
【简答题】A.His bitter experience abroad. B.What he saw in the Asian countries. C.Made-up stories based on his imagination. D.The stories about his family.
【多选题】下列属于第2类危险品的是()。
A.
氢气
B.
干冰
C.
氧气
D.
氯气
【单选题】Please keep an eye on my luggage, and I‘ 11 be back __________.
A.
in time
B.
in no time
C.
at one time
D.
at a time
【单选题】What can we learn from small children's experience in learning their mother tongues?
A.
We must live in England or America.
B.
We must keep on practicing.
C.
We must get help from good teachers, records, tapes, books and dictionaries.
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