问题 单项选择题 共用题干题

15岁男孩,左小腿上段进行性疼痛3个月余,偶有轻微发热、查体:左小腿上:段外侧方可触及一质硬包块,有轻微压痛、左下肢X线片示:左侧腓骨骨干边界模糊,存在不规则的破坏区,周围伴“葱皮样”反应骨形成。

如果经活组织检查证实为Ewing肉瘤.则其最可能来源于()。

A.骨髓细胞

B.成纤维细胞

C.成软骨细胞

D.成骨细胞

E.破骨细胞

答案

参考答案:A

阅读理解

A man came home from work late, tired, to find his 5-year-old son waiting for him at the door.

“Daddy, how much money do you make an hour?”

“If you must know, I make $20 an hour,”

“Oh,” the little boy replied, with his head down. He thought for a moment, looked up and said, “Daddy, could you lend me $10?”

The father was furious, “If you asked for the money to buy a toy or some other rubbish, then go straight to your room and think about why you are being so selfish(自私的)!”

The little boy quietly went to his room and shut the door. After about an hour or so, the father calmed down, and started to think, “Maybe he really needs to buy something and he didn’t really ask for money very often.” So he went to the little boy’s room.

“Sorry! Maybe I was too hard on you just now.” said the man, “Here’s $10.”

“Oh, thank you, Daddy!” he said happily. Then, the boy took out some coins. When the father found that the boy already had money, he got angry again.

“Why do you want more money since you already have some?” The father shouted angrily.

“Because I didn’t have enough, but now I do.” the little boy replied, “Daddy, I have $20 now. Can I buy an hour of your time? Please come home early tomorrow. I would like to have dinner with you.”

小题1:How much does the boy’s father make an hour?

A.$10

B.$20

C.$30

D.$40小题2:The underlined word “furious” in Para.5 means ______.

A.very angry

B.quite happy

C.very strange

D.a little nervous小题3:At first, the father refused to give the boy any money because ______.

A.he thought the boy was too selfish

B.he did not have enough money at that moment

C.he thought the boy would buy something of no use

D.the boy always asked for money from him小题4:The boy wanted to buy ______ with the twenty dollars.

A.a new book for himself

B.a nice present for his father

C.a toy for his own birthday

D.an hour of his father’s time小题5: From the passage, we can infer(推断)that the boy’s father ______.

A.often played with his son

B.spent little time with his son

C.didn’t love his son at all

D.often came back home early

单项选择题