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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.
【多选题】以下属于交易量和持仓量分析的10条规则的有（）。
A.
只能以交易量和持仓量的总额作为预测依据
B.
对持仓量必须作季度性修正
C.
如果交易量和持仓量萎缩，就表明当前价格趋势或许要生变
D.
OBV指标分析或其他类似方法可以更为明了地揭示交易量压力的方向