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【单选题】
进行电焊、气焊等具有火灾危险的作业人员和自动消防系统的操作人员，必须（ ）。A.
满十六周岁
B.
持证上岗
C.
具有相应学历
D.
无妨碍从事本工种作业的疾病
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】为了延长机器寿命使用计算机时最好____。
A.
用干净的棉布盖住显示器
B.
用干净的湿布给主机降温
C.
用绵布盖住机箱的各个能进灰尘的小孔
D.
不档住显示器和主机箱上的孔
【简答题】What would you like for your main course?
【单选题】There were a number of people out this afternoon______than last Sunday.
A.
far more
B.
much
C.
a lot of
D.
much more
【单选题】________I am aware,there were no problems during the first six months。
A.
As far as
B.
So much as
C.
Much more than
D.
Except that
【单选题】________ I know, there were no problems during the first three months.
A.
As far as
B.
As much as
C.
Much more than
D.
Too far
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