題目列表(包括答案和解析)
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
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
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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