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【单选题】
监视并反映工作电源有无电压的继电器是A.
低电压继电器
B.
过电压继电器
C.
电流继电器
D.
中间继电器
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反馈参考答案：
举一反三
【单选题】All of us _____ Hong Zhanhui, a university student, who takes good care of his sick father and little sister. [ ]
A.
speak highly of
B.
catch up with
C.
look out for
D.
are fed up with
【单选题】Who takes care of Oliver after his mother dies?
A.
His father.
B.
The nurse.
C.
A foster care center.
D.
His aunt.
【简答题】肝硬化的常见并发症有哪些？
【简答题】A．Who takes care of old people? B．Who volunteers at the children's school? C．Who pay the rent? D．Who cooks and cleans?
【单选题】Who takes care of Oliver after his mother dies?
A.
His father.
B.
A foster care center.
C.
The nurse.
D.
His aunt.
【简答题】肝硬化的常见并发症有哪些?
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