诊断输尿管结石最简便的方法是（） A.摄腹部平片 B.B超检查 C.尿常规检查 D.

安宫牛黄丸的功用是（）

A.清热解毒，开窍醒神

B.清热解毒，开窍安神

C.化浊开窍，清热解毒

D.开窍定惊，辟秽解毒

E.芳香开窍，行气止痛

发现肺癌的最基本的检查方法是

A．磁共振

B．胸部X线检查

C．癌标志物检测

D．痰脱落细胞学检查

E．放射性核素扫描检查

患者男性，50岁，左下肢沉重、胀痛，小腿出现"蚯蚓状"团块伴水肿5年。查体：血压140／90mmHg，右下肢正常，左小腿可见明显的静脉曲张，踝部肿胀，局部皮肤色素沉着。TrendelenburgⅠ式试验和Ⅱ式试验均阳性，Pratt阳性。

最好的治疗方法是（）

A.高位结扎术

B.静脉取栓术

C.高位结扎加静脉剥脱、交通静脉结扎术

D.注入硬化剂

E.抬高患肢穿弹力袜

Two Letters Letter A

Dear Etty Kit,

My roommate’s family wants me to have a thanksgiving dinner with them in their home. I accepted the invitation, and fm 成cited about going, but I，m a little worried about it, too. The social customs in my country are very different from here, so I’m a little afraid of making mistakes.

Should I bring a gift, such as candy or flowers? Should I arrive on time or a little late? At the dinner table, how can I know which fork or knife to use? How can I let the family know that I’m thankful for their kindness?

Confused

Letter B

Dear Confused,

It's a good idea to bring a small gift when you go to a dinner party. Flowers are always nice, or you might bring a bottle of wine if you know that the family drinks it.

You should arrive on time or five to ten minutes late. Don’t get there early. If you’re going to be more than fifteen minutes late, you should call and tell them.

Try to be free at the dinner table. If you don’t know about choosing the correct fork, knife, or spoon, just watch the other people, and follow them. If you still have no idea of what to do, don't be shy about asking the person next to you. It’s better to ask than to be quietly uncomfortable and nervous.

If you like the food, say so. Of course, you’ll thank the host and hostess for the meal and for their kindness. It’s so a good idea to spend a card or thank—you note the day after.

EttyKit

小题1:From the two letters we can see that Confused        .

A．doesn’t want to have dinner with his roommates family

B．refuses Etty Kit’s advice

C．has never been to a thanksgiving dinner before

D．isn’t a newcomer in his class小题2:Etty Kit may be        .

A．Confused's close friend

B．a person who gives advice about personal problems

C．a person who always holds parties

D．a flower or a candy seller小题3:Letter B was written to tell that       .

A．you always bring a nice gift when you go to a dinner party

B．you just watch the quests at a party and follow them, and do not be shy about asking questions

C．the Americans and Canadians like having a lot of dinner parties

D．if you follow a few rules of dinnerparties you will have a good time at the party小题4:the words ''host and hostess" in the last paragraph of Letter B mean.

A．people who go to a party

B．peoplewhocookdinner

C．people who hold a party

D．peoplewhosendinvitation

用离子选择性电极测定氟含量时，常需加入总离子强度调节缓冲剂，其包括()。

A、离子强度调节剂

B、掩蔽剂

C、沉淀剂

D、pH缓冲剂