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【单选题】
常用的通信介质包括双绞线、同轴电缆和A.
微波
B.
红外线
C.
光纤
D.
激光
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反馈参考答案：
举一反三
【单选题】Most people are ______ when they hear about people ______ come face to face with danger in order to save others. [ ]
A.
surprising; that
B.
exciting; as
C.
amazed; who
D.
interested; which
【简答题】People drink in a party in order to ______.
【单选题】______, I should ask them some questions.
A.
Should they come to us
B.
If they come to us
C.
Were they come to us
D.
Had they come to us
【简答题】What courses are offered in order to help people assert themselves?
【简答题】施工单位作业人员进入新的岗位或者新的施工现场前，应当接受 ()教育培训。未经教育培训或教育培训不合格的人员不得上岗作业。
【简答题】Why do nearsighted people wear glasses? In order to see __________.
【多选题】作业人员进入新的岗位或者新的施工现场前，应当接受安全生产教育培训。( )的人员，不得上岗作业。
A.
在试用期间
B.
未颁发教育培训合格证书
C.
未经教育培训
D.
从前岗位发生过责任事故的
E.
教育培训考核不合格
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