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【简答题】
低压配电线路的零线应靠电杆或建筑物排列。（）
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反馈参考答案：
举一反三
【单选题】Our teacher told us _______ in class .
A.
listened carefully
B.
to listen carefully
C.
listened careful
D.
to listen careful
【简答题】钢筋混凝土梁内的钢筋有纵向受力钢筋、弯起钢筋、箍筋、架立钢筋和( )。
【单选题】My mother was cooking while I____the radio.
A.
listened to
B.
have listened to
C.
was listening to
【单选题】They _____ the music. They say it is very wonderful. [ ]
A.
listened to
B.
have listened to
C.
are listening to
D.
listen to
【单选题】The boy _____ he took notes.
A.
listened with attention
B.
listening attentively while
C.
listened attentively before
D.
listening with attention
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