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【单选题】
( )适用于柱、墙、构筑物等现浇混凝土结构中竖向受力钢筋的连接。A.
钢筋窄间隙电弧焊
B.
钢筋电渣压力焊
C.
钢筋气压焊
D.
预埋件钢筋埋弧压力焊
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反馈参考答案：
举一反三
【单选题】“Please don’t forget ______ the door when you leave.” “No, I won’t forget ______ it.”
A.
to lock; to lock
B.
to lock; locking
C.
locking; to lock
D.
locking; locking
【简答题】历史曲线的数据来源是_____________。
【单选题】.()通过一个拥有与专用网络相同策的共享基础设施,提供对企业内部网或外部局域网的远程访问。
A.
Access VPN
B.
Intranet VPN
C.
Extranet VPN
D.
Internet VPN
【单选题】9) Why wouldn’t the car start if the driver returned to the carvery soon ? A) Because it had used its vapor lock. B) Because its vapor lock was too cold. C) Because its vapor lock hadn’t cooled down. ...
A.
Because it had used its vapor lock.
B.
Because its vapor lock was too cold.
C.
Because its vapor lock hadn’t cooled down.
D.
Because the car was tired from running.
【单选题】Don’t forget to lock the door , _____ ?
A.
do you
B.
don’t you
C.
will you
D.
won’t you
【单选题】— You didn't lock the back door. — You are wrong. I ______. [ ]
A.
have locked it
B.
lock it myself
C.
did lock it
D.
do lock it
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