题目内容
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The increase in labor-saving devices in the last 50 years reflected ______.
A．a shortage of labor force in America
B．people's need to reduce the time spent on housework
C．Americans' interest in doing housework
D．the quick change of American family life
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A．increased
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A．
B．
C．
D．
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A．To increase cash, debit the account
B．To increase revenue, credit the account
C．To decrease a receivable, debit the account
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A．The change of life-style.
B．The change of the nature of occupations.
C．The increase of social wealth.
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