A strange thing about humans is their capacity for blind rage. Rage is presumably an emotion resulting from survival instinct, but the surprising thing about it is that we do not deploy it against other animals. If we encounter a dangerous wild animal——a poisonous snake or a wildcat——we do not fly into a temper. If we are unarmed, we show fear and attempt to back away; if we are suitably armed, we attack, but in a rational manner not in a rage. We reserve rage for our own species. It is hard to see any survival value in attacking one’s own, but if we take account of the long competition which must have existed between our own subspecies and others like Neanderthal man——indeed others still more remote from us than Neanderthal man——man rage becomes more comprehensible.
In our everyday language and behavior there are many reminders of those early struggles. We are always using tile words "us and them". "Our
A. founded in historical fact
B. deceptive
C. apparent
D. accurate
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A.水上作业不穿戴救生衣的 B.交叉作业未采取错时、错位、硬隔离措施的 C.在禁烟区域内吸烟 D.特种设备、仪表未定期开展检测。 [单选题]下列关于自动喷水灭火系统管网沟槽式管件安装要求的说法，不正确的是（ ）。
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