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【单选题】
按基本额定动载荷选定的滚动轴承,在预定使用期限内其破坏率最大为 。
A.
l%
B.
0.05
C.
0.1
D.
0.5
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参考答案：
举一反三
【单选题】下列哪种流产处理前应做凝血功能检查
A.
先兆流产
B.
习惯性流产
C.
不全流产
D.
难免流产
E.
稽留流产
查看完整题目与答案
【单选题】听力原文：M: Thanks for stopping by, Ann. I'd like to talk to you about a research project I thought you might be interested in. A friend of mine is working at Yellowstone National Park this summer. W: Yel...
A.
A vacation trip to Yellowstone Park.
B.
A lecture by a visiting professor.
C.
Her biology thesis.
D.
A research project.
查看完整题目与答案
【单选题】一级动火工作的过程中，应每隔()测定一次现场可燃气体、易燃液体的可燃蒸汽含量是否合格，
A.
2-4小时
B.
1-2小时
C.
2-3小时
D.
3-4小时
查看完整题目与答案
【单选题】一级动火工作的过程中，应每隔（）测定一次现场可燃气体、易燃液体的可燃气体含量是否合格
A.
1～2h
B.
2～4h
C.
4～6h
查看完整题目与答案
【单选题】一级动火工作的过程中，应每隔（）小时测定一次可燃气体、易燃液体的可燃蒸气含量或粉尘浓度。
A.
2-4
B.
1-2
C.
2-3
D.
3-4
查看完整题目与答案
【单选题】听力原文： Many days seem to bring numerous tasks and responsibilities. All of which apparently must be tackled right away. You spend a day putting out files, but by the end of the day, you haven't accompl...
A.
They often feel insecure about their jobs.
B.
They are unable to decide what to do first.
C.
They are incompetent to fulfill their responsibilities.
D.
They feel burdened with numerous tasks every day.
查看完整题目与答案
【单选题】下列哪种流产处理前应做凝血功能检查
A.
先兆流产
B.
复发性流产
C.
难免流产
D.
不全流产
E.
稽留流产
查看完整题目与答案
【单选题】听力原文：From his resume, this candidate appears to be well qualified for the post of finance manager. Even so, I think we still need to check with his references. (23)
A.
The candidate is definitely well qualified, whether we check with his references or not.
B.
The candidate needs to be checked by the finance manager, even though he has work experience.
C.
We are satisfied with the candidate's references, who recommended him for the job.
D.
We should find more about the candidate, though he is apparently eligible for the post.
查看完整题目与答案
【单选题】一级动火工作的过程中，应每隔（）测定一次现场可燃气体、易燃液体的可燃气体含量是否合格。
A.
1～2h
B.
2～3h
C.
2～4h
D.
3～4h
查看完整题目与答案
【单选题】一级动火工作的过程中，应每隔（）h测定一次现场可燃气体、易燃液体的可燃蒸汽含量是否合格。
A.
1～2
B.
2～3
C.
2～4
查看完整题目与答案
相关题目：
【单选题】下列哪种流产处理前应做凝血功能检查
A.
先兆流产
B.
习惯性流产
C.
不全流产
D.
难免流产
E.
稽留流产
查看完整题目与答案
【单选题】听力原文：M: Thanks for stopping by, Ann. I'd like to talk to you about a research project I thought you might be interested in. A friend of mine is working at Yellowstone National Park this summer. W: Yel...
A.
A vacation trip to Yellowstone Park.
B.
A lecture by a visiting professor.
C.
Her biology thesis.
D.
A research project.
查看完整题目与答案
【单选题】一级动火工作的过程中，应每隔()测定一次现场可燃气体、易燃液体的可燃蒸汽含量是否合格，
A.
2-4小时
B.
1-2小时
C.
2-3小时
D.
3-4小时
查看完整题目与答案
【单选题】一级动火工作的过程中，应每隔（）测定一次现场可燃气体、易燃液体的可燃气体含量是否合格
A.
1～2h
B.
2～4h
C.
4～6h
查看完整题目与答案
【单选题】一级动火工作的过程中，应每隔（）小时测定一次可燃气体、易燃液体的可燃蒸气含量或粉尘浓度。
A.
2-4
B.
1-2
C.
2-3
D.
3-4
查看完整题目与答案
【单选题】听力原文： Many days seem to bring numerous tasks and responsibilities. All of which apparently must be tackled right away. You spend a day putting out files, but by the end of the day, you haven't accompl...
A.
They often feel insecure about their jobs.
B.
They are unable to decide what to do first.
C.
They are incompetent to fulfill their responsibilities.
D.
They feel burdened with numerous tasks every day.
查看完整题目与答案
【单选题】下列哪种流产处理前应做凝血功能检查
A.
先兆流产
B.
复发性流产
C.
难免流产
D.
不全流产
E.
稽留流产
查看完整题目与答案
【单选题】听力原文：From his resume, this candidate appears to be well qualified for the post of finance manager. Even so, I think we still need to check with his references. (23)
A.
The candidate is definitely well qualified, whether we check with his references or not.
B.
The candidate needs to be checked by the finance manager, even though he has work experience.
C.
We are satisfied with the candidate's references, who recommended him for the job.
D.
We should find more about the candidate, though he is apparently eligible for the post.
查看完整题目与答案
【单选题】一级动火工作的过程中，应每隔（）测定一次现场可燃气体、易燃液体的可燃气体含量是否合格。
A.
1～2h
B.
2～3h
C.
2～4h
D.
3～4h
查看完整题目与答案
【单选题】一级动火工作的过程中，应每隔（）h测定一次现场可燃气体、易燃液体的可燃蒸汽含量是否合格。
A.
1～2
B.
2～3
C.
2～4
查看完整题目与答案
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