8051MCU的T0/T1对外部脉冲计数时，外部脉冲高、低电平的宽度应≥1个机器周期。（）
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Members of the government acknowledge that many of their predictions were over-optimistic. =＞ Members of the government acknowledge many of their predictions ____ over-optimistic.
2. ________________, Forsyth, Leary, and Miller （1980)
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