更多“在液体表面上能产生足够的可燃蒸气，遇火能产生一闪即灭的燃烧现”相关的问题
安全、生产事故情况报表由（）上报。
A.县（市、区）安监局
B.市安监局
C.省安监局
D.省，市，县（市、区）省安监局均要上报
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A . SHOW DATABASEB . SHOW TABLESC . SHOW DATABASESD . SHOW TABLE
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听力原文：M: I can't touch anything sweet. It's my teeth.W: Speaking of your teeth, why don
听力原文：M: I can't touch anything sweet. It's my teeth.W: Speaking of your teeth, why don't you see a dentist？ If I were you, I'd do something about it right away. I suggest you visit the college's dentist first.Q: What is the woman's advice to the man？(13)A．See the campus dentist first.B．Touch something less sweet.C．Have a sound sleep right away.D．Not touch anything sweet.
W: Speaking of your teeth, why don't you see a dentist？ If I were you, I'd do something about it right away. I suggest you visit the college's dentist first.Q: What is the woman's advice to the man？(13)A．See the campus dentist first.B．Touch something less sweet.C．Have a sound sleep right away.D．Not touch anything sweet.
Q: What is the woman's advice to the man？(13)A．See the campus dentist first.B．Touch something less sweet.C．Have a sound sleep right away.D．Not touch anything sweet.
(13)A．See the campus dentist first.B．Touch something less sweet.C．Have a sound sleep right away.D．Not touch anything sweet.
A．See the campus dentist first.B．Touch something less sweet.C．Have a sound sleep right away.D．Not touch anything sweet.
B．Touch something less sweet.C．Have a sound sleep right away.D．Not touch anything sweet.
C．Have a sound sleep right away.D．Not touch anything sweet.
D．Not touch anything sweet.
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采用单轨吊车运输的双向运输巷道中，两车最突出部分之间的距离，对开时不得小于（）m。
A.0.2
B.0.5
C.0.8
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对他人的知觉主要是指通过对他人外部特征的知觉，进而取得对他们的（ ）等的认识。
A . 动机
B . 情感C . 意图D . 心理活动
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燃油系统增加泵的工作电压为（）
A . 28VDC
B . 115VDC
C . 115VAC
D . 220VAC
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φ1000以上轴合成塔一般用（）mm的合成催化剂。
A . 1.5～4.7
B . 4.7～6.3
C . 9.4～13
D . 6.3～9.4
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When the press release arrived in our inboxes, we knew what would happen next. A Nobel laureate had ...What is the author’s opinion of taking antioxidant supplements
A．Keeping fit means building a mirage.
B．Antioxidants provide a promising future prospect.
C．Keeping fit involves more than taking antioxidants.
D．Antioxidants can help stop ageing.
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对于受轴向载荷的紧螺栓联接，总工作载荷=预紧力+工作载荷。
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在政府采购合同履行过程中，采购人可以根据需要补充采购金额，但补充的采购金额最多是______。
A.原合同采购金额的5%
B.原合同采购金额的10%
C.原合同采购金额的15%
D.原合同采购金额的30%
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大便色鲜红、暗红或紫红，甚或黑如柏油样，次数增多，有胃肠或肝病史，当诊断为
A.便血
B.痢疾
C.痔疮
D.肛裂
E.肠炎
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精密水准仪装箱前仪器表面（非光学部件）污渍应该（）处理。
A.用湿抹布蘸洗涤精擦拭仪器外部
B.用手擦拭仪器外部
C.用干净纸巾擦拭仪器外部
D.用湿布擦拭仪器外部，如果擦不干净可以蘸纯酒精擦拭
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