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问题 单项选择题

有关上矢状窦血栓形成的病因表述正确的是（）

A.多见于眶部、鼻窦及上面部化脓性感染或全身性感染

B.最常见于脱水和衰弱的婴儿

C.常由化脓性乳突炎或中耳炎引起

D.由脑底异常血管网病引起

E.高血压和动脉粥样硬化

答案

参考答案：B

单项选择题

当老人说出自己在人际关系中的烦恼后，应和老人一起(　　)问题的根源在哪里，以便对症下药，找出解决问题的方法。

A．判断

B．决定

C．讨论

D．分析
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单项选择题

Looking back on my childhood, I am convinced (1) naturalists are born and not made. Although we were all brought (2) in the same way, my brothers and sisters soon gave up their pressed flowers and insects. (3) them, I had no ear (4) music and languages, I was not an early reader and I could not do mental arithmetic.Before World War I we (5) our summer holidays in Hungary. I have only the memory of the house we lived (6) , of my room and my toys. I can hardly (7) clearly the large family of grandparents, aunts, uncles and cousins who gathered (8) door. But I do have a clear memory of the dogs, the farm (9) , the local birds and, (10) all, the insects.I am a (11) , not a scientist. I have a p (12) of the natural world, and my enthusiasm has led me into varied investigation. I love discussing my favorite topics and enjoy (13)  the midnight oil  (14)  reading about other people’s observations and discoveries. Then  (15)  happens that brings these observations together  (16)  my conscious mind. Suddenly you fancy (想象), you see the answer  (17)  the riddle, and books, of which some might honor with the title of scientific research.But curiosity, a keen eye, a good memory and enjoyment of the animal and plant world do not make a scientist; one of the outstanding and essential  (18)  required is self-discipline, a quality I lack. A scientist requires not only  (19)  but also hard training, determination and a goal. A scientist, up to a point, can be made. A naturalist is  (20) . If you can combine the two, you get the best of both worlds.

 

第（3）空应选择（）

A．Unlike

B．Like

C．With

D．Against
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