对于月末发票账单未到的采购业务不必入账，待发票账单到达后再入账。
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What is the general tone of this passage？
A. Dogmatic.
B. Persuasive.
C. Impersonal.
D. Ironic.
With the two stories in Para. 2, the author explains
A. what are addictive and subtractive body-image problems.
B. women are more likely to suffer from body-image.
C. a lot of health problems axe caused by dieting.
D. obsession with body-image can cause death or damage to oneself.
What is the author's attitude towards the phenomenon of teenagers' drinking？
A. Favorable.
B. Undisclosed.
C. Impartial.
D. Realistic.
Which of the following can be used as the best title of this passage？
A. Employment and the Economy.
B. Unemployment and the Economy.
C. The National Economy of the U.S.
D. Unemployment Rate.
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