费用(成本)类账户结构与资产类账户结构相同，收入类账户结构与权益类账户相同。()
A. 正确
B. 错误
同一时期的收入抵减费用的结果，即形成这一时期的利润。()
A. 正确
B. 错误
The word "varied" in line 2 could best be replaced by ______.
A. increased
B. differed
C. returned
D. started
According to the passage, one important change in United States education by the 1920's was that ______.
A. most places required children to attend school
B. the amount of time spent on formal education was limited
C. new regulations were imposed on nontraditional education
D. adults and children studied in the same classes
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