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【多选题】
在计算机网络中( ) 是常见的导向性传输介质。A.
光纤
B.
同轴电缆
C.
双绞线
D.
微波
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】___ you were coming today, I would have met you at the railway station.
A.
Have I known
B.
I have known
C.
Had I known
D.
I had known
【单选题】I'll ______ that I'm a qualified engineer.
A.
have you know
B.
have known you
C.
have you knowing
D.
have you known
【多选题】危险源识别应注意的事项有（）。
A.
充分了解危险源的分部
B.
弄清危险源伤害的方式或途径
C.
确认危险源伤害的范围
D.
要特别关注重大危险源，防止遗漏
E.
对危险源保持高度警觉，持续进行动态识别
【多选题】危险源识别应注意的事项有( )
A.
充分了解危险源的分部
B.
弄清危险源伤害的方式或途径
C.
确认危险源伤害的范围
D.
要特别关注重大危险源,防止遗漏
E.
对危险源保持高度警觉,防止遗漏
【简答题】When did thr author write this essay? In what time of the year?
【简答题】What is thr close-up shot?
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