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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.
【单选题】第二篇 Health or Profit Although there is no direct evidence that salt is the cause of high blood pressure ar "hypertension", there are studies which indicate that reducing salt intake lowers blood press...
A.
the small reduced salt bread tastes the same as the standard content one
B.
most people can distinguish the content of salt in bread
C.
standard bread is different in taste from 20% reduced salt bread
D.
the less salt content of bread, the poorer taste it has
【单选题】第二篇 A Fire near Waco Six years later, in an about-face, the Federal Bureau of Investigation(FBI) admits that federal agents fired tear gas canisters capable of causing a fire at the Bran...
A.
neutral
B.
bitter
C.
excited
D.
expectant
【多选题】关于盘古神话,以下说法正确的是
A.
《盘古神话》包括宇宙开辟神话、人类起源神话，具体内容有混沌世界、盘古出世、开天辟地、日月升平、营造万物、除妖斗兽、滚磨成亲、兄妹成婚、体化万物，构成了盘古文化体系。
B.
盘古神话是中国神话的开端，盘古开天地是中国最早的叙述事件的神话，也是中国流传最普遍的创世神话。
C.
盘古用劳动创造世界、创造一切的信念，本身就是远古人类渴望认识自然、征服自然、不怕困难、敢于牺牲、勇于创造精神的体现。
D.
盘古的“卵生混沌说”与“尸体化生说”，都是从物质出发的唯物主义的思维产物，是原始科学思维的萌芽。 盘古的变化发展体现了一定辩证法思想。
【单选题】第二心音是( )
A.
标志心室收缩期的开始
B.
标志心室舒张期的开始
C.
以心尖部最强且清晰
D.
是心室壁、房室壁、腱索和乳头肌振动而产生
E.
是左右房室瓣骤然关闭的振动所致