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问题 单项选择题

为比较工人、干部中高血压患者所占比例是否不同，进行了x2检验，算得x2值为9.56，查表得x2(0.05，1)=3.84，若取α=0.05，应得出的结论是

A．拒绝π1=π2

B．拒绝π1>π2

C．拒绝μ1=μ2

D．接受π1=π2

E．接受π1>π2

答案

参考答案：A

单项选择题

Research on animal intelligence always makes me wonder just how smart humans are. (91) the fruitfly experiments described in Carl Zimmer’s piece in the Science Times on Tuesday. Fruit flies who were taught to be smarter than the average fruit fly (92) to live shorter lives. This suggests that (93) bulbs burn longer, that there is an (94) in not being too terrifically bright.
Intelligence, it (95) , is a high-priced option. It takes more upkeep, burns more fuel and is slow (96) the starting line because it depends on learning—a gradual (97) —instead of instinct. Plenty of other species are able to learn, and one of the things they’ve apparently learned is when to (98) .
Is there an adaptive value to (99) intelligence That’s the question behind this new research. I like it. Instead of casting a wistful glance (100) at all the species we’ve left in the dust I.Q. wise, it implicitly asks what the real (101) of our own intelligence might be. This is (102) the mind of every animal I’ve ever met.
Research on animal intelligence also makes me wonder what experiments animals would (103) on humans if they had the chance. Every cat with an owner, (104) , is running a small-scale study in operant conditioning, we believe that (105) animals ran the labs, they would test us to (106) the limits of our patience, our faithfulness, our memory for terrain. They would try to decide what intelligence in humans is really (107) , not merely how much of it there is. (108) , they would hope to study a (109) question. Are humans actually aware of the world they live in (110) the results are inconclusive.

A．fundamental

B．comprehensive

C．equivalent

D．hostile
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填空题

找出下列句中的通假字。

（1）井鱼不可以语于海者，拘于虚也　______通_______

（2）人卒九州谷食之所生、舟车之所通　______通_______

（3）不似豪末之在于马体乎　______通_______

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