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【多选题】
以下属于3E原则中的技术对策的有( )。A.
用不可燃的材料代替可燃材料
B.
手电钻采用双层绝缘措施
C.
提高员工的安全意识
D.
制定安全相关的管理制度
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反馈参考答案：
举一反三
【单选题】—I'll be away on a business trip. Do you mind 1ooking after my cat? —Not at all. ________.
A.
I've no time
B.
I'd rather not
C.
I'd like it
D.
I'd be happy to
【单选题】He is trying to swim out to the beacon and back. He must be insane to have _______________ such a thing. The current is far too strong.
A.
obliged himself to
B.
committed himself to
C.
engaged himself to
D.
resolved himself to
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