【单选题】

With regular means of learning, the learners have to study ______.
A．at school

B．on their own
C．at all hours of the day
D．by means of reading and writing

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根据网考网移动考试中心的统计，该试题：

83%的考友选择了A选项

13%的考友选择了B选项

2%的考友选择了C选项

2%的考友选择了D选项

With regular means of learning, the learners have to study ______.A．at school