上腹痛具有周期性和节律性，呕吐物呈咖啡残渣样，临床上最可能的诊断（） A.急性胃黏膜

阅读理解。

     There is a big supermarket near my home. Its name is Price-low.

     It has  lots  of things. You  can  buy  school things,  like  notebooks,  pens,  rulers,  erasers  and

pencil-sharpeners.  You can  buy vegetables,  fruit and all kinds of food.  You can also buy clothes.

Some of the things there are cheap(便宜的) , and anybody can afford the prices. But some of them

are dear.

     The supermarket is open  every  day from 9 :00 am t0 9 :30 pm.  The workers there are friendly.

They work hard all day. They are happy to answer your questions. They help you if you want to buy

some things. There are  many people  on  weekends.  They buy lots of things.  Sometimes they have

breakfast, lunch or dinner there, too.

1. The supermarket near my home is           .

A. new      

B. old      

C. smal    

D. big

2. kinds of school things are talked about.       

A Three    

B. Four    

C. Six    

D. Five

3.  The underlined(画线的) word "dear" here means"____" in Chinese.    

A.亲爱的    

B.宝贵的    

C.昂贵的  

D.精致的

4. The supermarket is open for about _______hours every day. 

A. seven    

B. six      

C. twelve  

D. ten

5. Which of the following is RIGHT?   

A. You can't buy clothes in the supermarket.

B. Some of the things in the supermarket are cheap, and some are dear.

C. The workers in the supermarket are not very good.

D. People can't have breakfast in the supermarket.

八角（俗称大料）是常用的烹调香料．通过适当的方法，从八角中可以提取到莽草酸，它是制取抗禽流感药物（商品名：达菲）的基本原料．根据莽草酸的化学式C₇H₁₀O₅，你能获得哪些信息？请写出两点：

（1）______；（2）______．

男，60岁，吞咽不适半年，近1个多月不能进固体食物，消瘦明显，最可能的诊断为（）

A.食管静脉曲张

B.食管平滑肌瘤

C.胃癌

D.胃底贲门癌侵及食管下端

E.贲门失弛缓症

有位史学家在评论古希腊城邦的成就说“不应看它没能做到什么，而应看它做到了什么。”从这一观点出发，你对雅典民主的认识应是（）

①雅典民主重视公民的民主权利和责任感，创造了辉煌的文明成就

②雅典民主创造了法治基础上的议会制、选举制等民主形式为后世民主发展提供了宝贵的经验

③实现了人民主权和轮番而治的设想，与同期其他文明的专制制度相比是巨大的进步

④雅典民主是公民政治，激发了公民的主人翁精神，但外邦人、奴隶等被排除在外

A.①②④

B.①②③

C.①③④

D.①②③④

虽然盾构机成本高昂，但可将地铁暗挖功效提高（）倍，而且在施工过程中，地面上不用大面积拆迁，不阻断交通，施工无噪声，地面不沉降，不影响居民的正常生活。

A.2～5

B.5～8

C.8～10

D.10～15