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【简答题】
哺乳动物颈椎一般有_______枚,第一颈椎呈环形,又称为_______,第二 颈椎又称_______。
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举一反三
【单选题】第二篇 Sleep We all know that the normal human daily cycle of activity is of some 7 - 8 hours’ sleep alternating with some 16 - 17 hours’ wakefulness and that, broadly speaking, the sleep n...
A.
people hate the inconvenience of working on night shifts.
B.
your life is disturbed by changing from day to night routines and back.
C.
not all industries work at the same hours.
D.
it is difficult to find a corps of good night workers.
【单选题】颈椎屈伸的正常范围是（）
A.
各35°～45°
B.
各45°～50°
C.
各50°～65°
D.
各20°～35°
E.
屈伸各60°
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【单选题】第二篇 Sleep We all know that the normal human daily cycle of activity is of some 7 - 8 hours’ sleep alternating with some 16 - 17 hours’ wakefulness and that, broadly speaking, the sleep n...
A.
people hate the inconvenience of working on night shifts.
B.
your life is disturbed by changing from day to night routines and back.
C.
not all industries work at the same hours.
D.
it is difficult to find a corps of good night workers.
【单选题】颈椎屈伸的正常范围是（）
A.
各35°～45°
B.
各45°～50°
C.
各50°～65°
D.
各20°～35°
E.
屈伸各60°
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