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【单选题】
在危险货物包装中盛装具有较大危险性的货物，包装强度要求高的为（ ）类包装。A.
Ⅰ
B.
Ⅱ
C.
Ⅲ
D.
Ⅳ
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反馈参考答案：
举一反三
【单选题】How long has the conference _____? For half an hour [ ]
A.
finish
B.
end
C.
over
D.
been over
【单选题】The course about Chinese food attracts over 100 students per year, ________ up to half are from overseas.
A.
in which
B.
for whom
C.
with which
D.
of whom
【简答题】When are over half of fatal accidents alcohol-related?
【简答题】Each day, over half of American children eat fast food.
【单选题】_________the new pop singer built her first album piece by piece.
A.
Over a year and a half
B.
Over half and a year
C.
Over one and a half year
D.
Over year and half
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