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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
【单选题】A．由于房价上涨有人买不起房，因此要限制一部分购买第二套住房 B．如果用停止银行贷款业务来应对企业借贷的坏账，银行信贷风险就会转移给消费者 C．部分农民养鸡喂猪有可能产生资本主义 D．由于有相当多的人买不起私人汽车，汽车产业不宜发展
A.
因为房价上涨还有人买不起房。因此要限制一部分购买第二套住房，那么是否因为还有人买不起私人汽车就不发展汽车产业了；是否因为中国的企业借贷有坏账就停止银行的贷款业务，将银行的信贷风险都转移给消费者？这与部分农民养鸡喂猪有可能产生资本主义的道理如出一辙，没有任何逻辑上的差别。
B.
与这段文字的文义相合的说法是（）。
【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