进站、出站、进路信号机及线路所的通过信号机，均以显示（）信号定位。

读短文，回答后面的问题。

       Some things can carry messages, for example, a sign at the bus stop helps you to know which bus to

take. Signs on the door tell you where to go in or out. Have you ever noticed that there are a lot of signs

around you and that you receive messages from them all the time?

       People can communicate in many other ways. An artist can use his drawing to tell about beautiful

mountains, about the blue sea and many other things. Books are written to tell you about all the wonderful

things in the world and also about people and their ideas.

       Books, magazines, TVs, radios and films all help us to communicate with others. They all help us to

know what is going on in the world and what other people are thinking about.

1. What can help you if you want to know which bus to take?

_______________________________________________

2. What do the signs on the door do?

_______________________________________________

3. People can communicate in many other ways, can't they?

_______________________________________________

4. What can help us to communicate with others?

_______________________________________________

5. What do they help us to do?

_______________________________________________

已知{a_n}是公差不为零的等差数列，a₁=1，且a₁，a₃，a₉成等比数列．

（Ⅰ）求数列{a_n}的通项；

（Ⅱ）求数列{2^a_n}的前n项和S_n．

首字母填词。

1. I like to take out your t_______ and f_______ your clothes, because it's r______.

2. I have to help Bill f_______ his golden fish.

3. Johnson has some f_______ to ask you.

4. The students will have a w_______ party at the Chritmas Eve.

5. —I'm not feeling w_______, doctor.

    —Nothing serious. You will feel b_______ soon.

女性患者，48岁，发现颈部肿物1个月。颈部彩超显示：甲状腺右叶见-4cm×3cm的孤立性结节，放射性核素扫描为冷结节，L、T水平正常。病理检查：肿瘤类圆形，边界清、有包膜，包膜上可见扩张血管。镜下，瘤组织由大小较一致的小型滤泡组成，细胞无明显异型性，包膜血管内见有部分滤泡样组织，其表面有纤维素覆盖。

该患者最可能的病理诊断是（）

A.腺瘤性甲状腺肿

B.甲状腺腺瘤

C.甲状腺滤泡癌

D.甲状腺 * * 状癌滤泡型

E.甲状腺转移癌

简述钱乙儿科病“五脏分证”的特点。