The second paragraph is written chiefly to show that______
A. there will be an acute labor shortage in the near future.
B. baby-boomers contribute much to the US economic output
C. government policies concerning older people are out-dated.
D. alder workers are enthusiastic about collecting social benefits.
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【C3】
A. by
B. from
C. with
D. in
In the last sentence, "if you don't" means "if you don't ______."
A. like the stories
B. know the author
C. understand the stories
D. know about the stories
People know Lewis Carroll mainly for ______.
A. his good penname
B. his interesting stories
C. his ability in mathematics
D. his wonderful teaching at Oxford University
辅助生产成本采用计划成本分配法分配时，辅助生产成本实际发生的费用与按计划单位成本分配转出的费用之间的差额采用简化计算方法全部计人管理费用。（）
A. 正确
B. 错误
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