—My cell phone is driving me crazy! It keeps turning off and on.—______. Maybe you should have it checked, or just return it（）
A. I’m sorry to hear that
B. That’s all right
C. It depends
D. No big deal
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It is politely requested by the hotel management that radios ______ after 11 o’clock at night（）
A. not to play
B. were not played
C. not be played
D. were not playing
In his junior year, Gates ______ Harvard to devote his energies to Microsoft（）
A. stopped off
B. gave in
C. dropped out of
D. pulled up
文字识别的英文OCR，是哪个缩写（）
A. Optical Character Recognition
B. Oval Character Recognition
C. Optical Chapter Recognition
D. Oval Chapter Recognition
人工智能的英文缩写AI是（）
Automatic Intelligence
B. Artificial Intelligence
C. Automatic Information
D. Artificial Information
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