居住小区设计方案评价指标中，( )是衡量用地经济性和保证居住区必要卫生条件的主要技术经济指标。
A．建筑毛密度
B．居住面积密度
C．居住建筑净密度
D．绿化比率
参考答案：C
解析：本题考核的是居住建筑净密度。居住建筑净密度是衡量用地经济性和保证居住区必要卫生条件的主要技术经济指标。其数值的大小与建筑层数、房屋间距、层高、房屋排列方式等因素有关。适当提高建筑密度，可节省用地，但应保证日照、通风、防火、交通安全的基本需要。
| 阅读理解。 |
| Many textbooks are not written in the kind of English that we speak every day. In fact, sometimes the reading is so difficult that it almost seems like a foreign language. In a way, it is-the language of science. You should not expect to be able to read a difficult science passage the same way you read an interesting story; you should not expect to read it easily and all at once. Instead, you may have to read it several times through, catching on the meaning of difficult words, going back over difficult sentences, and finally putting the whole thing together. Do not be discouraged if the whole passage don't make sense to you at first. You need to pick it apart patiently until you can understand it. These are the steps to follow when you are reading something difficult: 1. Start to read normally until you run into a sentence that doesn't make sense to you. 2. When a sentence doesn't make sense, go back and read it again more slowly. 3. Look for any word you don't know in the sentence. Try to understand their meanings using word parts and context clues (上下文线索). If necessary, look them up in the dictionary. 4. Look at the next few sentences to see if they explain more about the sentence you are working on. Do not read very much farther ahead until you understand what is being said. 5. Finally, read the sentence again. Try to put it into simpler words. 6. Read through the passage once. Try to understand all the hard parts well. Then read the whole passage once more at a usual speed. This helps you to put all ides together. The stops sound a lot harder than they are. It is really just the normal way good readers understand anything that is difficult to read. After you have done the best you can this way, you should always feel free to ask for help from your teacher, if you have one. |
| 1. The underlined phrase "run into" means ______. |
[ ] |
| A. work out B. come across C. look into D. pass by |
| 2. From the passage, we can know ______. |
[ ] |
| A. we should look up new words before reading B. it is sometimes difficult to read a science passage C. the six steps are helpful in learning spoken English D. interesting stories help readers to improve their English |
| 3. The massage is mainly about ______. |
[ ] |
| A. steps of studying science B. difficulties in reading science C. ways of reading science passages D. researches on science and English |