下图是凡尔登战役的一个场景。这场战役往往被人们称为“绞肉机”“屠城”和“地狱”，

下列税法的构成要素中，( )是区别不同类型税种的主要标志。

A．征税对象

B．税目

C．计税依据

D．纳税环节

患者男性，50岁。心悸、手抖3年，加重1个月。体检：P110次／分，BP160/60mmHg，消瘦，皮肤潮湿，甲状腺可触及，可闻及血管杂音，颈静脉无怒张，心界不大，心率134次／分，心律绝对不整，心音强弱不等，肺、腹（-），双下肢不肿。

首选的治疗方案应为（）

A.抗甲状腺药

B.手术

C.放射性碘

D.先辅以药物治疗，病情有所控制后行放射性碘治疗

E.先辅以药物治疗，病情有所控制后行手术治疗

Hobbs was an orphan(孤儿). He worked in a factory and every day he got a little money. Hard work changed him thin and weak. He wanted to borrow a lot of money to learn to paint pictures, but he did not think he could pay off the debts.One day the lawyer said to him, “One thousand dollars, and here is the money.” As Hobbs took the package of notes, he was very dumbfounded（目瞪口呆的）. He didn’t know where the money came from and how to spend it. He said to himself, “I could go to find a hotel and live like a rich man for a few days; or I give up my work in the factory and do what I’d like to do: painting pictures I could do that for a few weeks, but what would I do after that? I should have lost my place of the factory and have no money to live on. If it were a little less money, I would buy a new coat, or a radio, or give a dinner to my friends. If it were more, I could give up the work and pay for painting pictures. But it’s too much for one and too little for the other.”

“Here is the reading of your uncle’s will（遗嘱）,” said the lawyer, “telling what is to be done with this money after his death. I must ask you to remember one point. Your uncle has said you must bring me a paper showing exactly what you did with his money, as soon as you have spent it.”

“Yes, I see. I’ll do that.” said the young man.

小题1:He wanted to borrow money because he wanted to_____.

A．study abroad

B．work abroad

C．pay for the debts

D．learn to paint pictures小题2:Hobbs was dumbfounded on receiving the money because he thought_____.

A．the money was too much

B．the money was too little

C．he would be dismissed

D．the lawyer meant to punish him小题3:With the money he got, first Hobbs_____.

A．planned to have a happy life for a few days

B．decided to give up his work in the office

C．was to give a dinner to his friends

D．had no idea what to do小题4:What Hobbs was asked to do was_____.

A．to tell the lawyer what he did with the money after spending it

B．to read his uncle’s will

C．to tell the lawyer what was to be done with the money

D．nothing but to buy some pictures小题5:What Hobbs really loved to do was_____.

A．working in the factory

B．living in a fine hotel

C．painting pictures

D．saving the money

有以下语句：int b;char c[10];，则正确的输入语句是______。

A．scanf("%d%s",&b,&c);

B．scanf("%d%s",&b,c);

C．scanf("%d%s",b,c);

D．scanf("%d%s",b,&c);

球阀的代号为（）。