填空题

In what aspect did the statistics show of aging Americans

【参考答案】

life-styles and responsibilities
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Jenny failed in chemistry last semester.
单项选择题
A．The newspapers remain thin and flexible.B．The presses can print larger sheets of paper.C．The ink is fast drying and clear.D．The ink can be changed and retested.
A．The newspapers remain thin and flexible.
B．The presses can print larger sheets of paper.
C．The ink is fast drying and clear.
D．The ink can be changed and retested.
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