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【单选题】
关于炔烃的二聚,说法正确的是( )A.
可用 作催化剂
B.
生成的产物为1，3-丁二烯
C.
生成的主产物为二乙烯基乙炔
D.
生成的产物为1，3-炔
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皮皮学刷刷变学霸
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【简答题】形成人力资源市场需要具备哪些条件?
【简答题】A．A hourricane's right after his car. B．A queen bee's hidden in his car. C．A policeman's car's running after his car. D．His mum is going to pass away.
【单选题】The longest reign in British history was ______.
A.
Queen Victoria
B.
Queen Elizabeth
C.
King Henry VIII
D.
Queen Charlotte
【简答题】Queen Bee
【单选题】The queen bee appears ______ well in the comb built by the diligent worker bees.
A.
to nurse
B.
to be nursed
C.
to have nursed
D.
being nursed
【单选题】The longest reign in British history was ______.
A.
Queen Victoria
B.
Queen Elizabeth
C.
King Henry Ⅷ
D.
Queen Charlotte
【简答题】形成人力资源市场需要具备哪些条件？
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