摘要： Questions and exercises are given by the computer, which decides to move the students ahead, review an easier level, give more work on the same level. A. either, or B. both, and .C. whether, or D. not only, but also
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Questions and exercises are given by the computer, which decides ______ to move the students ahead, review an easier level, ____ give more work on the same level.
A. either, or B. both, and .C. whether, or D. not only, but also
查看习题详情和答案>>Questions and exercises are given by the computer, which decides ______ to move the students ahead, review an easier level, ____ give more work on the same level.
A. either, or B. both, and .C. whether, or D. not only, but also
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