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【单选题】
离心泵叶轮设平衡降低（）A.
容积效率
B.
水力效率
C.
机械效率
D.
A和B
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反馈参考答案：
举一反三
【简答题】Franz Kafka wrote that “ a book must be the ax ( 斧子) for the frozen sea inside us. ”I once shared this sentence with a class of sh graders, and it didn’t seem to require any explanation. We’d jus...
【单选题】贝多芬出身贫寒,11岁加入戏院乐队,17岁丧母恶龙后置57岁去世,期间能创作了很多不朽的杰作,下列能体现贝多芬人生经历的选项是
A.
创造人生需要自强不息
B.
创造人生需要掌握方法
C.
创造人生需要量力而行
D.
创造人生需要挖掘特长
【单选题】I think the writer _______ wrote the book is very creative.
A.
which
B.
who
C.
when
D.
where
【简答题】I was listening to all the experts and talking to sort of a board of medical advisers. And they were telling me all the things I had to do. I had to eat right, exercise, , pet dogs, because that lower...
【单选题】Lily _____ a book about China last month but I don’t know whether she has finished it.
A.
wrote
B.
had written
C.
is writing
D.
was writing
【简答题】Franz Kafka wrote that “ A book must be the ax( 斧子 )for the frozen sea inside us .” I once shared this sentence with a class of sh graders, and it didn’t seem to require any explanation. We’d jus...
【单选题】下列有关软膏剂质量要求的叙述,错误的是
A.
均匀、细腻并具有适当黏稠性
B.
易涂布于皮肤或黏膜上
C.
应无刺激性、过敏性与其他不良反应
D.
软膏剂中药物应充分溶于基质中
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