在某智力竞赛中，小明对一道四选一的选择题所涉及的知识完全不懂，只能靠猜测得出结果

关于电容器的电容C，下列说法正确的是（　　）

A．电容是描述电容器容纳电荷本领的物理量

B．电容器两极板间的电压越高，电容就越大

C．电容器所带电荷增加一倍，电容就增加一倍

D．电容器所带的电荷越多，电容就越大

Last week, the manager of an old jeweler's shop received a letter marked "personal". As he was very busy, the letter lay on his desk till teatime. When he opened it, a $100 note fell. out onto his desk. With the note was a short letter. This is what it said:

Dear sir,

I got engaged (订婚的) forty years ago. Unfortunately at that time there was a lot of unemployment and I lost my job. I was out of work for about six months before I got another one. Of course I was very short of money.

I came to your shop to buy a wedding ring one day. The assistant brought some rings for me to have a look, later she was called away, and then I put one of the rings into my pocket. When she came back, I said I did not know the size of my girlfriend's finger.

So I left the shop without paying for the ring. My wife died a month ago, and the fact that I never paid for her ring has been on my conscience

(让我良心不安) all these years. I always feel guilty about that. At that time the ring cost $ 20, and I think that is about five times- $100 at today's price. Now I am sending you that amount.

Yours truly,

A customer

After reading the letter, the manager said, "Well, well, well, life is full of surprise!"

小题1:The ring that the customer put into his pocket was_______ at that time.

A．$20

B．$50

C．$100

D．$400小题2:The underlined word "unemployment" means "_______" in Chinese.

A．辞职

B．就业

C．悲伤

D．失业小题3:How long has the customer's wife been dead?

A．A week.

B．A month.

C．A year.

D．Two months.小题4:Which is NOT true according to the passage?

A．The manager opened the letter by himself.

B．The manager thought life was full of surprise.

C．When the customer's wife knew the fact, she was impatient.

D．The customer always feels sad for not paying for the ring years ago.

患者，男性，50岁。畏寒、发热伴排便不适2天。指检于直肠前壁触及一肿块，波动感明显，伴压痛。

为进一步确诊，该病人下步应行的检查是（）

A.直肠肿块穿刺

B.腹部超声

C.腹部CT

D.肛门镜

E.直肠镜

企业融资只有两种方法，一是债务融资，二是权益融资。在实施融资活动时只能用其中一种方法

黄芪的气味是()

A．气微，味淡

B．气微，味微苦

C．气微，味甜

D．气微，味甜而特殊

E．气微，味微甜，嚼之微有豆腥气