车轮出现下列情况时应报废（）。A、裂纹 B、夹渣 C、弧坑 D、砂眼 E、缩孔 F、

阅读理解.

     Once there was a piano player in a bar. People came just to hear him play. But one night, a lady

asked him to sing a song.

     "I don't sing," said the man.

     But the lady told the waiter, "I'm tired of listening to the piano. I want the player to sing!

     The waiter shouted across the room, "Hey, friend! If you want to get paid, sing a song!'

     So he did. He had never sung in public before. Now he was singing for the very first time! Nobody

had ever heard the song Mona Lisa sung so beautifully!

     He had talent(天赋) he was sitting on! He may have lived the rest of his life as a no-name piano

player in a no-name bar. But once he found, by accident, that he could sing well, he went on working

hard and became one of the best-known singers in the US. His name was Nat King Cole.

     You, too, have skills and abilities. You may not feel that your talent is great, but it may be better

than you think. With hard work, most skills can be improved. Besides, you may have no success at all

if you just sit on your talent.

1. The lady asked the player to sing a song because _____.

A. she had paid him for this

B. she knew him very well

C. she wanted to have a change

D. she enjoyed his singing

2. Nat King Cole succeeded because _____.

A. the lady helped him a lot

B. he caught the chance

C. he continued to play in the bar

D. he stopped playing the piano

3. The words "sit on" in the passage probably mean "_____".

A. 参加

B. 搁置

C. 开发

D. 展示

4. Which could be the best title for the passage?

A. Sing in the Bar

B. Achieve Success in Life

C. Never Lose Heart

D. Find Your Hidden Talent

业务发起部门提交发放审核的授信申请材料主要包括哪几类文件？

男，63岁，进行性吞咽困难3个月，近1周来出现声音嘶哑。下列哪项检查对病人最适合（）

A.胸部X线片+心电图

B.胸部B超+痰细胞学检查+间接喉镜

C.胸部MRI+纤支镜

D.食管吞钡+食管镜

E.癌胚抗原+核素³² 磷扫描+胃液分析

国债因其有很高的信誉，故经常被称为( )。

A．信誉债券

B．公共债券

C．金边债券

D．契约债券

成熟的烟叶细胞排列（）。