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【单选题】
第二次社会大分工是指（）。
A.
农业与手工业的分工
B.
畜牧业与农业的分工
C.
商业与农业的分工
D.
商业与手工业的分工
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参考答案：
参考解析：
刷刷题刷刷变学霸
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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.