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【简答题】
某年某月某日，某化工厂聚氯乙烯车间聚合工段因氯乙烯单体外泄，发生空间爆炸。死亡12人，重伤2人，轻伤3人。现场勘查发现：3#聚合釜2个冷却水阀门均处于关闭状态（据了解，该车间有这类“习惯性”操作）。虽然当时3#釜已经反应了8个小时，处于聚合反应的中后期（该厂聚合反应一般为11小时），但反应还是处于较激烈阶段，关闭冷却水阀门必然使大量反应热不能及时导出，造成釜内超温超压，由于聚合釜人垫未按照设计图纸的要求选用，所以人垫被冲开，使大量氯乙烯单体外泄，引发爆炸。同时发现聚合釜防爆片下的阀门全部关死。 根据案例完全下列问题： 在压力容器及压力管道构成的密闭系统中，试列举容器或管道破裂导致物料泄漏的常见原因。
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参考答案：
举一反三
【单选题】断后伸长率用符号______表示。
A.
σ s
B.
σ b
C.
δ    
D.
φ
查看完整题目与答案
【单选题】与Q235号钢相比，Q255号钢( )。
A.
δ大，σS小
B.
δ大，σS大
C.
δ小，σS小
D.
δ小，σS大
查看完整题目与答案
【单选题】古代哲学中构成宇宙本原的是
A.
天气
B.
精气
C.
阳气
D.
阴气
E.
地气
查看完整题目与答案
【单选题】Until we have discussed all the details, no decision _______ about any new operations. [     ]
A.
will be made
B.
is made
C.
is being made
D.
has been made
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【单选题】The competitions that we have discussed in this chapter do NOT include ______.
A.
“21 Century Cup” National English Speaking Competition
B.
National English Competition for College Students
C.
'FLTRP Cup' English Public Speaking Contest
D.
“Star of Outlook” English Talent Competition
查看完整题目与答案
【单选题】to the conference, we have already discussed this problem among ourselves.
A.
Similar
B.
Previous
C.
Cautious
D.
Senior
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【多选题】中国古代哲学精气范畴是
A.
本原性物质概念
B.
整体性物质概念
C.
非为结构性的物质概念
D.
构成宇宙万物的最基本元素
查看完整题目与答案
【单选题】If we had discussed it with the manager， he would have surely agreed with it.
A.
necessarily
B.
simply
C.
certainly
D.
possibly
查看完整题目与答案
【单选题】If we had discussed it with the manager， he would have surely agreed with it.
A.
unnecessarily
B.
simply
C.
certainly
D.
possibly
查看完整题目与答案
【单选题】________ teaching method, we have not yet discussed it.
A.
In relation to
B.
In contrast to
C.
In addition to
D.
In regard to
查看完整题目与答案
相关题目：
【单选题】断后伸长率用符号______表示。
A.
σ s
B.
σ b
C.
δ    
D.
φ
查看完整题目与答案
【单选题】与Q235号钢相比，Q255号钢( )。
A.
δ大，σS小
B.
δ大，σS大
C.
δ小，σS小
D.
δ小，σS大
查看完整题目与答案
【单选题】古代哲学中构成宇宙本原的是
A.
天气
B.
精气
C.
阳气
D.
阴气
E.
地气
查看完整题目与答案
【单选题】Until we have discussed all the details, no decision _______ about any new operations. [     ]
A.
will be made
B.
is made
C.
is being made
D.
has been made
查看完整题目与答案
【单选题】The competitions that we have discussed in this chapter do NOT include ______.
A.
“21 Century Cup” National English Speaking Competition
B.
National English Competition for College Students
C.
'FLTRP Cup' English Public Speaking Contest
D.
“Star of Outlook” English Talent Competition
查看完整题目与答案
【单选题】to the conference, we have already discussed this problem among ourselves.
A.
Similar
B.
Previous
C.
Cautious
D.
Senior
查看完整题目与答案
【多选题】中国古代哲学精气范畴是
A.
本原性物质概念
B.
整体性物质概念
C.
非为结构性的物质概念
D.
构成宇宙万物的最基本元素
查看完整题目与答案
【单选题】If we had discussed it with the manager， he would have surely agreed with it.
A.
necessarily
B.
simply
C.
certainly
D.
possibly
查看完整题目与答案
【单选题】If we had discussed it with the manager， he would have surely agreed with it.
A.
unnecessarily
B.
simply
C.
certainly
D.
possibly
查看完整题目与答案
【单选题】________ teaching method, we have not yet discussed it.
A.
In relation to
B.
In contrast to
C.
In addition to
D.
In regard to
查看完整题目与答案
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