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参考解析：
刷刷题刷刷变学霸
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.
【多选题】健康风险评估的科学基础是()
A.
没有疾病症候的人不等于没有健康风险
B.
影响健康的危险因素是可以量化的
C.
减少或控制健康危险因素可以达到预防或延缓发病的目的
D.
疾病的发生是无规律的