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【多选题】
下列关于空心阴极灯使用注意事项描述正确的是 ()
A.
一般预热时间 20~30min 以上
B.
长期不用,不用定期点燃处理
C.
低熔点的灯用,等冷却后移动
D.
测量过程中不可以打开灯室盖调整
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参考答案:
举一反三
【单选题】听力原文:W: Here is my application form. M: Would you please wait in a line to recall your number? Q: What does the man ask the woman to do? (18)
A.
To wait for her turn.
B.
To fill in an application form.
C.
To make a phone call.
D.
He shares the woman's opinion.
【单选题】关门车不得挂于机车后部()辆之内。
A.
4
B.
3
C.
2
D.
1
【单选题】关门车不得挂于机车后部()之内。
A.
1辆
B.
2辆
C.
3辆
D.
4辆
【单选题】_______ , we went swimming in the lake.
A.
The day being very hot
B.
It was a very hot day
C.
The day was very hot
D.
Being a very hot day
【单选题】关门车不得挂于机车后部()辆车之内。
A.
1
B.
2
C.
3
D.
4
【单选题】______, we went swimming in the river.
A.
The day was very hot
B.
Being a very hot day
C.
The day being very hot
D.
It was a very hot day
【单选题】以下哪些行为属于侵犯他人知识产权?
A.
商标侵权、盗版
B.
店铺名、店铺公告、店铺装修等店铺内容中存在商标侵权、误导消费者的信息
C.
图片、文字版权侵权、专利侵权
D.
这三种情况都是
【单选题】《技规》规定关门车不得挂于机车后部()辆车之内。
A.
2
B.
3
C.
4
D.
5
【单选题】______ we went swimming in the river.
A.
The day being very hot
B.
It was a very hot day
C.
The day was very hot
D.
Being a very hot day
【简答题】关门车不得挂于机车后部[(1)]辆车之内,列车中连续连挂关门车不得超过[(2)]辆。A. 3B. 2
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