题干
People usually ________ at night, but Mr. Wang ________ in the day.
A：sleep; sleep
B：sleeps; sleeps
C：sleeps; sleep
D：sleep; sleeps
答案(点此获取答案解析）
D
People usually ________ at night, but Mr. Wang ________ in the day.
A：sleep; sleep
B：sleeps; sleeps
C：sleeps; sleep
D：sleep; sleeps
对任意实数
都有
，那么（ ）