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【单选题】
产生（ ）必须具备三个条件，可燃物、助燃物、着火源。A.
燃烧
B.
着火
C.
爆炸
D.
自燃
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反馈参考答案：
举一反三
【单选题】下列过程中 ∆ S 为负值的是哪一个:
A.
液态溴蒸发成气态溴
B.
SnO 2 (s) + 2H 2 (g) = Sn (s) + 2H 2 O(l)
C.
电解水生成 H 2 和 O 2
D.
公路 上 撒 盐 使冰融化
【简答题】Passage One Questions 46 to 50 are based on the following passage. California has been facing a drought for many years now, with certain areas even having to pump freshwater hundreds of miles to their...
【简答题】Passage One Questions 46 to 50 are based on the following passage. California has been facing a drought for many years now, with certain areas even having to pump freshwater hundreds of miles to their...
【简答题】Passage One Questions 46 to 50 are based on the following passage. California has been facing a drought for many years now, with certain areas even having to pump freshwater hundreds of miles to their...
【简答题】What kind of meat do you usually eat? Most of us eat chicken, pork, or beef. But as the world’s 46______ grows, more people will need protein. There won’t be enough meat for everyone. And raising more...
【多选题】资本集中的方式是
A.
以大鱼吃小鱼的方式，兼并中小资本
B.
以组织股份公司的方式，把许多分散的小资本集合成大资本
C.
以民主协商的方式，吸收中小资本
D.
以资本积累的方式，吞并小资本
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