题目内容

关于脑脊液的描述正确的是

A. 是一种有色不透明的液体
B. 主要由脑室脉络丛产生
C. 硬膜外隙有脑脊液
D. 最后进入淋巴液

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关于脑脊液描述，正确的是

A. 位于硬脊膜与蛛网膜之间
B. 充满蛛网膜下隙
C. 经室间孔流入硬脑膜窦
D. 经蛛网膜流入下矢状窦

脑动脉

A. 来源于颈内动脉和椎动脉
B. 颈内动脉和椎动脉营养范围大致以顶枕沟为界
C. 仅有大脑中动脉发出的中央支供应豆状核、尾状核及内囊等
D. 颈内动脉有分支营养眼
E. 大脑中动脉营养语言中枢

硬脑膜形成的结构有

A. 大脑镰
B. 小脑幕
C. 上矢状窦
D. 海绵窦

Section DDirections: In this section you will hear a recorded short passage. The passage is printed in the test paper, but with some words or phrases missing. The passage will be read three times. During the second reading, you are required to put the missing words or phrases on the Answer Sheet in order of the numbered blanks according to what you hear. The third reading is for you to check your writing. Now the passage will begin.Scientists are trying to (16) some small cars that may someday take the place of today’s big automobiles. If everyone drives such cars in the future, there will be less (17) in the air. There will also be more space for parking cars in cities, and the streets will be less (18) . The little cars will cost much less to (19) and to drive. Driving will be safer, too, as these little cars can go only 65 kilometers per hour. The little cars will be fine for getting around the city, but they will not be (20) for long trips. Little cars which are powered by gasoline will go 450 kilometers before needing to stop for more gasoline.