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【判断题】
星形连接的三相电源三个绕组的首端分别向外引出的导线称为中线或零线。A.
正确
B.
错误
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】Why does Claudia wish to have someone to break her heart?
A.
Because she wants to grow up and enjoy a life of freedom
B.
Because she wants to be loved by a man outside of her family
C.
Because her mother’s singing makes love and loss sweet and endurable
D.
Because she is a dreamy girl
【单选题】Why does Claudia wish to have someone to break her heart?
A.
Because she wants to grow up and enjoy a life of freedom
B.
Because her mother’s singing makes love and loss sweet and endurable
C.
Because she wants to be loved by a man outside of her family
D.
Because she is a dreamy girl
【单选题】When are the lilies_______?
A.
under full bloom
B.
in full bloom
C.
in fully bloom
D.
of full bloom
【单选题】Why does Ms. Li think that Claudia is right for the job?
A.
Because she understands the customers' needs.
B.
Because she has a high energy level and a lot of experience.
C.
Because she has international experience.
D.
Because she has won a lot of sales awards.
【单选题】下肢静脉曲张的表现
A.
上肢对称性皮肤颜色改变
B.
下肢浅静脉红肿、硬有压痛,足背动脉搏动减弱
C.
趾端坏死,血胆固醇增高
D.
下肢静脉淤血水肿、慢性溃疡形成
E.
下肢变形水肿、肢端慢性溃疡形成
【简答题】下列选项中正确的C语言标识符是( ):A. _buy_2 B．2_buy C．?_buy D．buy?
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