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问题 填空题

电线的芯线要用金属来做是因为金属是______，电线芯外面要包一层橡胶或塑料，是因为橡胶和塑料是______．

答案

电线的芯是用来导电的，因此选用导体来做；电线芯外面包着橡胶或塑料，因为它们是绝缘体，人接触不容易触电．

故答案为：导体；绝缘体．

阅读理解

从方框中所给的选项中选出能填入空白处的最佳选项补全短文，其中有一项是多余选项。（10分）

Pablo Picasso（毕加索） was born in Spain in 1881. His father was a painter and art teacher. 小题1:__________________He won a prize — “Science and Charity” for his first important painting when he was only fifteen. He studied in several cities in Spain. But there was no one to teach him all that he wanted to know. 小题2:________________________

Paris was then the center of the world for artists. Everything that was new and exciting in the world of paintings seemed to happen there. 小题3:__________________When he was twenty-three, Picasso moved there to live . 小题4:_______________________

When he was over ninety, this great painter still lived his life like a young man. 小题5:____________________________

When he died in 1973, he was ninety-one years old.
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单项选择题 A1型题

治疗动物肝炎时的首选药是（）

A.肝泰乐

B.钙制剂

C.25%葡萄糖

D.鱼石脂

E.人工盐
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