关于重力加速度，下列说法正确的是 A．重力加速度表示自由下落的物体运动速度变化的

阅读理解。

     Every day, we can see ads all around us. Some are in English, others are in Chinese. Look at your own

bags and clothes. Often bags and clothes show the name of the company that made them. This is a popular

form (形式). A special picture or symbol called logo (标识) is sometimes used. Logos appear on many

products. They are popular because when you see a logo, it is difficult to forget that product or company.

All ads are designed to make people buy a product. It is common to see ads on TV and hear them on radio.

     Most ads are very short. Sometimes the advertisers ( 广告人) use a short sentence that is easy for people

to say and remember. Li Ning, for example, has a simple sentence that is used all over China, "Everything is

possible". Ads also use funny situations sometimes. An ad for a kind of ice cream, for example, might show

a group of young people who are having fun. The young people are all eating the ice cream. Advertisers are

saying to you, "Why don't you buy this kind of ice cream and be like these people? You can be young and

modern."

     You might think that ads are not aimed at you, but the next time you buy ice cream, ask yourself this

question; Why am I buying this special product?

1. From the passage, we know that __________.

A. all the ads around us are written in English

B. many clothes have the name of the company that made them

C. most ads are very long

D. eating ice cream can make a person young and modern

2. Advertisers would like to use the logos that are __________.

A. easy to forget

B. difficult to understand

C. easy to remember

D. difficult to remember

3. How many ad examples are there in the second paragraph (段落)?

A. One.

B. Two.

C. Three.

D. Four.

4. The passage mainly tells us about __________.

A. ads around us

B. logos around the world

C. products in our daily life

D. disadvantages of ads

城镇体系规划的期限一般为：

A．30年

B．15年

C．25年

D．20年

生理情况下，影响有效滤过压的主要因素是（）

A.毛细血管血压和血浆晶体渗透压

B.毛细血管血压和组织液静水压

C.毛细血管血压和血浆胶体渗透压

D.血浆晶体渗透压和组织液胶体渗透压

E.血浆胶体渗透压和组织液胶体渗透压

儿童高血压的特点不包括下列哪项：（）

A.以原发性高血压多见

B.体格检查中眼底要求至关重要

C.诊断主要以测量血压为诊断依据

D.治疗以利尿剂为主要药物

E.高血压危象治疗首选硝普钠

被喻为“金砖四国”的国家是（）。

A.中国

B.巴西

C.俄罗斯

D.南非

E.印度