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【单选题】
室内消火栓、水龙带和水枪之间一般采用( )接口连接。A.
螺纹
B.
内扣式
C.
法兰
D.
焊接
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反馈参考答案：
举一反三
【单选题】We agreed here but so far she hasn’t turned up yet.
A.
having met
B.
meeting
C.
to meet
D.
to have met
【判断题】People tend to use England and English when they mean Britain and British. This sometimes annoys the Scots, the Welsh and the Irish.
A.
正确
B.
错误
【单选题】We agreed _here but so far she hasn't turned up 出现yet.
A.
having met
B.
to meet
C.
to have met
D.
meeting
【单选题】We agreed ____here but so far she hasn’t turned up yet.
A.
Having met
B.
meeting
C.
to meet
D.
to have met
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