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【判断题】
产品组合的长度是指产品线的数量A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】听力原文：If one of the food links is not kept, what will happen to the food chains? (12)
A.
Breaking up.
B.
Dying out.
C.
Stopping.
D.
Disappearing.
【单选题】What do sales figures reflect in free market terms?
A.
They reflect the manufacturers' decision of production cut-backs.
B.
They reflect the state of local market forces at any one place and at any one time.
C.
They reflect the demands and supplies of a corporation.
【单选题】What links cognitive development to the needs of society?
A.
Practical purpose.
B.
Natural human cognitive development.
C.
Language.
D.
Warning of danger.
【单选题】Judging from the context, what does the word 'them' (line 4, paragraph 2) refer to?
A.
Decision makers.
B.
The 'losing' faction.
C.
Anger, resentment, and jealousy.
D.
Other people.
【单选题】Judging from the context, what does the word 'them' (Line 4, Paragraph 4) refer to?
A.
Decision makers.
B.
The 'losing' faction.
C.
Anger, resentment, and jealousy.
D.
Other people.
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