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【单选题】
零序电流,只有在发生( )才会出现。A.
相间短路
B.
振荡时
C.
接地故障或非运行时
D.
对称短路
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【单选题】听力原文：Were you able to schedule an appointment for Friday? (A) No, there wasn't any time available. (B) No, the apartment hasn't been sold. (C) Mr. Parker hasn't finished it yet. (8)
A.
B.
C.
【简答题】我们有没有一些线索可以串联起来,以便查明这件事情的真相?
【单选题】我们有没有一些线索可以串联起来,以便更好地理解这件事?
A.
Do we have some wires and lines to piece together so that we can understand the thing better?
B.
Are there any clues and hints for us to piece together to gain a better understanding of the matter?
【单选题】My agenda is quite full for the whole week, so I can't()an appointment with you.
A.
draw up
B.
sign
C.
make
【单选题】翻译句子:我们有没有一些线索可以串联起来,以便更好地理解这件事?
A.
Are there any clues and hints for us to piece together to gain a better understanding of the matter?
B.
Are there any clues and hints for us to piece apart to gain a better understanding of the matter?
C.
Are there any clues and hints for us to piece together to gain a worse understanding of the matter?
D.
Are there any clues and hints for us to piece together?
【单选题】根据《安全标志》（GB2894一96）， 安全标志'禁止抛物”、'当心扎脚”、'必须戴防尘口罩”分别属于 （ ）。
A.
警告标志、禁止标志、指令标志
B.
禁止标志、指令标志、警告标志
C.
禁止标志、指令标志、提示标志
D.
禁止标志、警告标志、‘指令标志
【简答题】按照《劳动合同法》的规定，下列关于劳务派遣的表述中，正确的是（ ）。
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