问题 单项选择题

对于火灾危险程度高的大型储罐区,为提高泡沫灭火系统的防范能力,《低倍数泡沫灭火系统设计规范》规定:当储罐区固定式泡沫灭火系统的泡沫混合液量大于或等于()时,系统的泵、比例混合器及其官道上的控制阀、干管控制阀宜具备遥控操纵功能。

(A)50L/s

(B)75L/s

(C)100L/s

(D)125L/s

答案

参考答案:C

阅读理解

阅读理解。

     The Barbie doll first appeared at the toy fair in New York in 1959. Its creator was Ruth Handler, an

American businesswoman. She and her husband Elliott along with Harold Matt Matson started the toy

company Mattel. She based the design of the new doll on a German doll named Bild Lilli and named her

after their daughter Barbara.

     The first Barbie wore a black and white swimsuit and had her hair in a ponytail (马尾辫). She looked

very grown-up. But any concerns that parents would not want to buy it for little girls were soon proved

wrong.

     Mattel sold 300,000 Barbie dolls in the first year at a price of three dollars. Today, a fifty-year-old

Barbie in good condition might cost more than 27,000 dollars. Barbie dolls have represented 50 different

nationalities and are sold in 150 countries. Mattel says 90% of girls in the United States between the ages

of three and ten own at least one Barbie doll. It says girls between the ages of three and six own an average

of about 12.

     Barbie also faced her share of critics. A well-known example was when women's education groups

objected to a talking Barbie doll that declared, among other things, “Math class is tough!” Mattel agreed to

change it. Saudi Arabia has banned Barbie dolls. And a lawmaker in the American state of West Virginia

would like to do the same. Last month, he proposed banning sales of Barbie and other dolls that influence

girls to put too much importance on physical beauty.

     Some people say Barbie is an unhealthy role model for young girls. Robin Gerber disagrees. She wrote

a book about Barbie. She points out dolls like scientist Barbie and race car driver Barbie. She says people

who criticize Barbie should tell girls the story of the businesswoman who created her. She says Ruth

Handler wanted the dolls to help girls think about what they wanted to do with their lives.

1.The first Barbie doll might not be popular among little girls because ______.

A. her hairstyle was out of fashion

B. her appearance looked much too mature

C. her way of dressing was against the tradition

D. physical beauty wasn't thought to be important

2. From the passage we know that Mattel ______.

A. is one of the world's largest toy companies

B. is the director of an American toy company

C. was the woman who originally created Barbie

D. was a salesman who was good at selling Barbie dolls

3. Barbie dolls are criticized partly because they make girls ______.

A. pay too much attention to their physical beauty

B. neglect their schoolwork and inner beauty

C. prefer physical beauty to inner beauty

D. waste too much time and money on clothes

4. It can be inferred from the last paragraph that in her book Robin Gerber _______.

A. shows Barbie dolls have a negative influence on girls

B. praises a successful person who sells Barbie dolls

C. expresses her own favorable opinion about Barbie

D. argues for banning the sales of Barbie dolls

单项选择题