根据短文内容及首字母提示， 完成下面短文，每空一词。

     Jim was a country boy. He was on his (1) w_____ to New York to see his grandma. As his parents were

very (2) b_____, he had to go there by himself. This was his first trip by plane. He found (3) e_____ new and

interesting. Soon it was the middle of the night. But Jim couldn't (4) s_____. He wanted a drink very much.

He saw some people went to the back of the (5) p_____ and got drinks from a girl there. But he didn't have

much (6) m_____ with him. He tried to sleep, but he just couldn't. At last he went to the girl with a (7) d_____

in his hand. "Miss," he said, "Could I have a drink?" "Sure," said the girl with a (8) s_____. She gave him a

drink, but she didn't take his money." You have paid for the (9) t_____. It means you have paid for the (10)

f_____ and drinks on the plane."

关于马蹄肾的描述，下列错误的是（）

A.左右肾下极联合

B.易并发肾肿瘤

C.有多根肾动脉

D.偶见左右肾上极联合

E.左右输尿管自肾门通过肾联合