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【单选题】
关于易燃易爆物品的描述不恰当的是A.
前，先查明物品的理化性质及危险特性
B.
了解物品是否禁止共同、是否易形成爆炸混合物
C.
有针对性地采取避光、通风、隔离、冷藏、定量、分散等措施
D.
便于使用者取用，允许随拿随放
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举一反三
【简答题】He had three of his teeth knocked out in the fight．
【单选题】He bought three books, is in Chinese, in English, and in Japanese.
A.
the first; the other; the third
B.
one; the other; a third
C.
one; the other; another
D.
one; another; the third
【单选题】He about three thousand words in the past three years. [ ]
A.
has learned
B.
learned
C.
was learning
D.
had learned
【单选题】We wanted to know _____. [ ]
A.
where did he live three years ago
B.
where he lived in three years before
C.
why he cried so sadly
D.
how soon he will come back
【单选题】—Where is your brother? —He has gone to Beijing. He back in three days.
A.
will come
B.
comes
C.
has come
D.
came
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