甲1______2______3______4______5______6____爱下问搜题

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问题解答题

甲 1______2______3______4______5______6______

乙1______2______3______4______6______．

答案

甲图是玉米种子，玉米种子由种皮、胚和胚乳组成，1胚轴，2胚芽，3胚根，4子叶，5胚乳，6种皮，胚乳中储存有丰富的营养；乙图是菜豆种子，菜豆种子由种皮和胚组成，胚包括1胚轴、2胚芽、3胚根、4子叶，子叶中储存有丰富的营养，6种皮．

故答案为：胚轴；胚芽；胚根；子叶；胚乳；种皮；胚轴；胚芽；胚根；子叶；种皮

完形填空

Henry was a boy of nine. He was born in a        family. His father was often ill and couldn’t go to work. Only his mother worked in a factory. She worked hard and hoped to give her four children and husband        food and clothes. But she failed. Her family was sometimes hungry. Of course, she couldn’t send Henry to school. She was        it but she didn’t know what to do. The boy was very clever and taught himself to read，write and        at home in the evening. And in the daytime he was polishing（擦）shoes in the street, so he could make some        for his family.
One afternoon the boy saw a young man’s shoes were       , so he said to him, “ Let me polish your shoes.”
“No, thank you,” the young man said and walked away.
“You may pay me only one dollar, sir,” the boy shouted        him. But the young man said no again. Then the boy thought for a while and told him that he would polish his shoes for nothing. The young man        to this, and soon one of his shoes was shining brightly. The man showed        shoe to the boy, but the boy said no to polish it if he wasn’t paid two dollars for his work. .The young man refused（拒绝）to        anything on it and went away.
But his shoes were so different that he had to stop. He turned back and gave the boy two dollars. In a very short time the shoe was as bright as the other one.

D．friendly to

C．in front of

单项选择题配伍题

叶间积液（）

A.胸片示片状致密影，呈肺叶或肺段分布

B.胸片示薄壁空洞，病灶周围可见卫星灶

C.胸片示肺纹理增粗，紊乱，有蜂窝状和卷发样阴影

D.侧位胸片示叶间梭形密度增高影

E.胸片示肺动脉段突出，右下肺动脉干横径≥15mm