皮皮学，免费搜题
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【单选题】
流程优化中，信息传递的丢失主要原因在于：()
A.
职责不明确
B.
非工作时间过长
C.
交接次数过多
D.
过度集权
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【简答题】设计实验方案,鉴别己烷、己烯、乙醇、溴乙烷四种无色液体。
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【简答题】由于地面摩擦力的影响,实际风向与地转风向有偏角,在陆地上偏角约为:( )°-( )°
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【单选题】教师与学生问好,属于哪个课堂步骤?
A.
导入环节
B.
复习环节
C.
组织教学
D.
操练
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【单选题】Lily often ____________ dinner at 9: 00. [     ]
A.
eat
B.
have
C.
eats
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【单选题】— Have you ever been to Shanghai? — Yes. I there with my father last year.
A.
went
B.
have been
C.
have gone
D.
has been
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【单选题】Lily and I are good friends, often help each other.
A.
You
B.
We
C.
They
D.
She
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【单选题】—Have you ever been to Canada? —Yes, I _____ there last year with my parents. [     ]
A.
have been
B.
have gone
C.
went
D.
go
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【单选题】Lily often _____ shopping with her mother at weekends. [     ]
A.
go
B.
went
C.
goes
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【单选题】)—Have you ever been to Shanghai? —Yes , I________there a few months ago. A . have been B . )—Have you ever been to Shanghai? —Yes,I________there a few months ago. went C . have gone
A.
have been
B.
went
C.
have gone
D.
will go
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【单选题】— Have you ever been to Nanning?   — Yes, _______ .
A.
I was
B.
I do
C.
I am
D.
I have
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【简答题】设计实验方案,鉴别己烷、己烯、乙醇、溴乙烷四种无色液体。
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【单选题】)—Have you ever been to Shanghai? —Yes , I________there a few months ago. A . have been B . )—Have you ever been to Shanghai? —Yes,I________there a few months ago. went C . have gone
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