下课后，老师拿起所有学生的答题纸，读了答案。
At the end of the class, the teacher took all the students' answer sheets and read the answers.
选出最佳答案并填写在答题纸的相应位置上。
Choose the one that is best in each case and then fill in the corresponding oval on answer sheet.
当然，你可以要更多的答题纸，但这会很占时间—写作中要充分利用所有时间。
Of course, you can request more paper, but this takes time-and you need all the time you can get to write.
无纸考试系统理想的组卷方式是根据试题得分概率和答题时间概率分布自动组卷，使所组卷子的预期考试成绩和答题时间数学期望和方差符合要求。
A ideal exam-paper formation algorithm of a no-paper examination system automatically makes a exam-paper to meet pre-demands of exam-grade distribution and exam-time.
无纸考试系统理想的组卷方式是根据试题得分概率和答题时间概率分布自动组卷，使所组卷子的预期考试成绩和答题时间数学期望和方差符合要求。
A ideal exam-paper formation algorithm of a no-paper examination system automatically makes a exam-paper to meet pre-demands of exam-grade distribution and exam-time.
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