Q:What is the present situation about Americans' communting to work?
A. More and more Americans spend over an hour getting to work.
B. Over 10 percent of Americans spend less than an hour getting to work.
C. Only New York people spend more than 90 minutes getting to work.
D. Over 10 percent of Americans spend more than 90 minutes getting to work.
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Q:Why does Steven choose to have an extreme communte?
A. Because gas prices are not high.
Because the commute is not tiring.
C. Because he can attend a better school.
D. Because he can have his favorite lifestyle.
Q:Which of the following is the disadvantage of long commute?
A. Traffic jams.
B. Expensive housing.
C. Poorer life quality.
D. A tiring and boring trip.
数组是把相同数据类型的变量按照顺序组织起来的一个集合,数组中的单个变量称为数组元素。
A. 对
B. 错
数组的维数是至表示数组使用的下标的个数。
A. 对
B. 错