在“数与代数”的教学中，应帮助学生建立数感和符号意识，发展运算能力，初步形成（）思想

阅读理解。

     A few years ago, Masaru lbuka, the head of Sony, was at a company planning meeting. Suddenly he had

an idea. He stopped the meeting and asked everyone what would happen if Sony took away the recording

function and speakers and sold headphones with a tape player instead. Almost everyone thought he was silly.

Still, lbuka kept his idea and worked at it. The result, of course, turned out to be successful Sony Walkman.

    Good ideas often start with a really silly question. Bill Bower man was making breakfast one day. As he

stood there making cakes for his son, he asked himself what would happen if he poured rubber (橡胶) into his

cake iron (蛋糕模具). Later, he tried it and the result looked something like the bottom of most sports shoes

we see today. Still, when he took this idea to several shoes companies, he was laughed at. In fact, every single

company turned him down. Though rather disappointed, Bill went on to form his own company, making NIKE

 sports shoes. 

     We know today, of course, that each of these ideas caused a successful thing that has changed the way

many of us live. The best questions are usually opened (开放的) and are often "Silly", Children aren't afraid

to ask such questions, but adults usually are. Think how difficult the world might be if people never asked

"silly" questions!

1. At first ________ thought Masaru's idea was good.

A. no one

B. most people

C. few people

D. everyone

2. The underlined word "silly" means ________ in Chinese.

A. 聪明的

B. 伟大的

C. 愚蠢的

D. 渺小的

3. Masaru wanted to make a tape player ________.

A. with recording function, speakers and headphones

B. with headphones, but no recording function or speakers

C. with speakers and headphones, but no recording function

D. with recording function and speakers, but no headphones

4. Bill Bower man got his ideas from ________.

A. his son

B. sports shoes

C. cating

D. cooking

5. So many people refused Bill Bower man because ________.

A. they thought his idea was silly

B. they didn't know how to make sports shoes

C. his idea was hard to come true

D. it was difficult to pour rubber into the cake iron

南岳衡山的最高峰是（）。

为了评估高血压在2型糖尿病合并肾病中的作用。回顾性分析了按年龄、性别、种族、居住地相匹配的两组2型糖尿病患者，其中一组为非蛋白尿组(尿蛋白＜300mg/24h，n=106)，另一组为蛋白尿组(尿蛋白≥500mg/24h，n=106)。回顾性分析了出现蛋白尿之前高血压的患病情况，分析显示：高血压与蛋白尿的比值比(OR)及其95%的可信区间为2.00(1.17～3.43)。正确的结论是

A．高血压可增加蛋白尿发生的危险，高血压是蛋白尿发生的危险因素

B．高血压可减少蛋白尿发生的危险，高血压是蛋白尿发生的保护因素

C．高血压与蛋白尿的发生无统计学联系

D．蛋白尿组高血压的发病率高于非蛋白尿组

E．非蛋白尿组高血压的发病率高于蛋白尿组

在金属学中，冷热加工的温度界限是以（）来划分的。

在焊接铝镁合金时，可选用含镁量比焊件金属高（）的铝镁焊丝。

A.1-2%

B.3-4%

C.5-6%

D.6-7%