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【单选题】
下列关于拉伸特征的说法，错误的是（）。
A.
拉伸特征是通过为草图截面轮廓添加深度的方式创建特征或实体的特征
B.
可为非闭合草图轮廓添加拉伸特征使其生成实体
C.
可为非闭合草图轮廓添加拉伸特征使其生成曲面
D.
拉伸特征的形状由草图形状、拉伸范围和扫掠斜角来控制
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【单选题】事故和事故隐患的关系是:()。
A.
完全相同
B.
后者是前者的可能性
C.
后者是前者的必然条件
D.
前者后者是的必然条件
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【单选题】下列关于危险源与事故隐患关系的说法正确的是( )。
A.
事故隐患一定是危险源
B.
危险源一定是事故隐患
C.
重大危险源一定是事故隐患
D.
重大事故隐患一定是重大危险源
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【单选题】图 2-4 控制电路中,按正常操作时,图 ( ) 会出现点动工作状态。
A.
图（a）
B.
图（b）
C.
图（c）
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【简答题】Read the passage carefully until you have got its main idea, and then select one appropriate word for each gap from the box following the passage. Despite the name, the Underground Railroad was not re...
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【单选题】You have so many apples. And I have nothing. Can you__________one of them for me?
A.
spend
B.
spare
C.
sphere
D.
share
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【单选题】The doctor closely ________ the child patient’s heart condition around the clock.
A.
monitors
B.
complains
C.
exaggerates
D.
perplexes
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【简答题】Theme-related Read the passage carefully until you have got its main idea, and then select one appropriate word for each gap from the box following the passage. Despite the name, the Underground Railr...
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【单选题】事故和事故隐患的关系是：隐患是事故的可能性。事故急患泛指生产系统中（）的人的不安全行为、物的不安全状态和管理上的缺陷。
A.
不容忽视
B.
存在
C.
经过评估
D.
可导致事故发生
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【简答题】Passage One Questions 1 to 5 are based on the following passage. Occasional self-medication has always been part of normal living. The and selling of drugs have a long history and are closely l...
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【简答题】Passage One Questions 1 to 5 are based on the following passage. Occasional self-medication has always been part of normal living. The and selling of drugs have a long history and are closely l...
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【单选题】事故和事故隐患的关系是:()。
A.
完全相同
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后者是前者的可能性
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后者是前者的必然条件
D.
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【单选题】下列关于危险源与事故隐患关系的说法正确的是( )。
A.
事故隐患一定是危险源
B.
危险源一定是事故隐患
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重大危险源一定是事故隐患
D.
重大事故隐患一定是重大危险源
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【单选题】图 2-4 控制电路中,按正常操作时,图 ( ) 会出现点动工作状态。
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【简答题】Read the passage carefully until you have got its main idea, and then select one appropriate word for each gap from the box following the passage. Despite the name, the Underground Railroad was not re...
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【单选题】You have so many apples. And I have nothing. Can you__________one of them for me?
A.
spend
B.
spare
C.
sphere
D.
share
查看完整题目与答案
【单选题】The doctor closely ________ the child patient’s heart condition around the clock.
A.
monitors
B.
complains
C.
exaggerates
D.
perplexes
查看完整题目与答案
【简答题】Theme-related Read the passage carefully until you have got its main idea, and then select one appropriate word for each gap from the box following the passage. Despite the name, the Underground Railr...
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【单选题】事故和事故隐患的关系是：隐患是事故的可能性。事故急患泛指生产系统中（）的人的不安全行为、物的不安全状态和管理上的缺陷。
A.
不容忽视
B.
存在
C.
经过评估
D.
可导致事故发生
查看完整题目与答案
【简答题】Passage One Questions 1 to 5 are based on the following passage. Occasional self-medication has always been part of normal living. The and selling of drugs have a long history and are closely l...
查看完整题目与答案