问题 单项选择题

有一栋写字楼,地下一层,地上10层,其中1~4层带有裙房,每层建筑面积为3000m2;5~10层为标准办公层,每层面积为2000m2。标准办公层每层公共区域面积占该层面积的30%,其余为纯办公区域。请回答下列问题: 在四层有一设有 * * 台的大型电视会议室,在 * * 台后部设有投影幕,观众席第一排至会议的投影幕布的距离为8.4m,观众席共设有24排座席,两排座席之间的距离为1.2m,试通过计算确定为满足最后排人员能看清投影幕的内容,投影幕的最小尺寸(对角线),其结果应为下列哪项数值?()

A.4.0m

B.4.13m

C.4.5m

D.4.65m

答案

参考答案:A

阅读理解

阅读理解。

     This year, about 2,300 teenagers from all over the world will spend about 10 months in US

homes. At the same time about 1,300 American teenagers will go to other countries to learn new

languages and learn the rest of the world.

     Here is a 2-way student exchange in action. Fred,19, spent last year in Germany with George's

family. In turn, George's son Mike spent a year in Fred's home in America.

     Fred, a lively young man, knew little German when he arrived. But after 2 months of studying,

the language became easy for him. School was completely different from what he had expected

and it was much harder. Students rose respectfully when the teacher entered the room. They took

14 subjects instead of 6 that were usually taken in the US.

     Family life, too, was different. The father's word was the law. All the activities were done with

the family rather than individually. Fred found the food to be too simple at first. He also missed

having a car.

     "Back home, you pick up some friends in a car and go out to have a good time.In Germany,

you walk but you soon learn to like it ."

     At the same time, in America, Mike,a friendly German boy, was also forming his own ideas.

"I suppose I should criticize American schools" he says, "It is far too easy for our level but I have

to say that I like it a lot. In Germany, we do nothing but study. Here we take part in many other

activities. I think that maybe American schools are better in training their citizens. There ought to

be some middle ground between the two."

     1 between American school life and German school life

单项选择题