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【多选题】
1927年8月1日 ,发动南昌起义的领导人有A.
B.
德
C.
叶 挺
D.
贺 龙
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举一反三
【单选题】Nitrous oxide comes from car exhausts and from chemical fertilizers. ( )
A.
gas which is produced by cars
B.
oil used for driving
C.
waste oil discarded
D.
devices that burn oil
【简答题】根据句意及首字母提示完成单词。 1. This is my mother's s ______ . She is my aunt. 2. My father's brother is my u ______ . 3. My father's mother is my g ______ . 4. Meimei is my good f ______ , but we aren't in the sa...
【单选题】The chemical cargo has the characteristic of _____ to be paid sharp attentions during sea transportation.
A.
flammability
B.
toxicity
C.
corrosivity
D.
all of the above
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