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【单选题】
火灾致人死亡的最主要原因是( )A.
吸入有毒烟气窒息死亡
B.
直接被火烧死
C.
人员拥挤致死
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【简答题】阅读理解。 A young woman carrying a three-year-old child got on a bus. The conductor hurried to give her a warm welcome and then kindly asked the other passengers to make more room for the woman and her ch...
【单选题】The young man was ___ for giving his life to rescuing a five-year-old child.
A.
cited
B.
mentioned
C.
listed
D.
quoted
【简答题】三角形具有（ ）性，而平行四边形具有（ ）性。
【单选题】Which number would you use to order a book for a 2-year-old child?
A.
0 7459 3892 2．
B.
0 7459 4056 0．
C.
0 7459 3952 X．
D.
0 7459 4578 3．
【简答题】平行四边形具有（ ）的特性，三角形具有（ ）性。
【简答题】常见的密码算法体制有对称密码体制和___________体制两种。
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