题目内容

Questions 11-13 are based on the following passage. You now have 15 seconds to read the questions 11-13. Why did the speaker give up making another appointment

A. He was busy sightseeing.
B. He didn’t want to see Mr. Jordan any more.
C. He couldn’t visit Mr. Jordan in his office.
D. He didn’t want to take the trouble making it.

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耐火电缆用于明敷有多根电缆配置中，或位于油管、熔化金属溅落等可能波及场所时，其耐火性应符合现行国家标准《电线电缆燃烧试验方法》的规定，并满足该标准第6部分B类的要求。除上述情况外且为少量电缆配置时，可采用符合该标准第6部分C类要求的耐火电缆。( )

A. 对
B. 错

苷经酸水解后水层的纸色谱可检识（）

A. 糖的种类
B. 苷元的种类
C. 苷的分子量
D. 单糖间连接位置
E. 苷键的构型

Questions 17-20 are based on the following passage. You now have 20 seconds to read the questions 17-20 What is the purpose of building new houses facing north or south

A. To avoid direct Sunlight.
B. To keep out the cold.
C. To limit space used.
D. To conform to other houses.

Among the most popular books being written today are those which are usually classified as science fiction. It is a broad type of fiction that often involves (36) based on current or future science or (37) . Science fiction is found in books, art, television, films, games, theater, and other media. Hundreds of (38) are published every year and read by all kinds of people. (39) , some of the most successful films of recent years have been based on science fiction stories. Most of the (40) of science fiction, however, have been written within the last one hundred years. Books by writers, such as Jules Verne and H. G. Wells, to (41) just two well-known authors, have been translated into many languages. Modem science fiction writers don’t write about men from Mars of space (42) stories. It is often thought that science fiction is a fairly new development in (43) , but its origin can be found in books written hundreds of years ago. (44) , a theme which is still found in modem-stories. (45) ; or in imaging future worlds which are a reflection of the world which we live in now. Because of this, their writing has obvious political meaning. (46) , the writers may find it difficult to keep ahead of scientific advances.