166. As we all know, _____ is very famous for its software industry though it is a developing country.
| A．Japan | B．South Korea | C．India | D．Ireland |
高三英语单项填空简单题
166. As we all know, _____ is very famous for its software industry though it is a developing country.
| A．Japan | B．South Korea | C．India | D．Ireland |
高三英语单项填空简单题查看答案及解析
As we all know, independence is very ________ for youngsters because sooner or later they will leave their families and live alone.
A. essential B. accurate C. flexible D. temporary
高三英语单项填空简单题查看答案及解析
As we know, his father is a very famous scientist in physics. But what you don’t know is that he _______ as a farmer for five years.
A. has worked B. worked
C. had worked D. works
高三英语单项填空中等难度题查看答案及解析
As we all know, Lost in Thailand is a very successful movie, the cost of ______ is only 30 million yuan.
A. which B. that C. whose D. whom
高三英语单项填空中等难度题查看答案及解析
As we all know, Lost in Thailand is a very successful movie, the cost of ______ is only 30 million yuan.
A．which B．that C．whose D．whom
高三英语单项填空简单题查看答案及解析
. _____ the Emei Mountain is famous for its beauty.
A. As is known to all B. It is known to all
C. It is known to us all that D. As we all know that
高三英语单项填空中等难度题查看答案及解析
As we all know．____life is hard for any of us. If we live___ happy life，we must all work harder.
| A．／：／ | B．／；a | C．a；／ | D．a；a |
高三英语单项填空简单题查看答案及解析
As we know, DNA testing is very useful for crime fighting. But now crime fighters could have a new tool at hand. Researchers have developed a cutting-edge (前沿的) technique to identify human hair. Their test is quicker than DNA analysis techniques currently used by the police.
DNA testing is commonly used for identification because DNA is unique to each individual. However, environmental and chemical processes can degrade(降解) DNA, limiting its usefulness over time. Protein (蛋白质) in hair, on the other hand, is more stable than DNA but can also have variations (变异体) that may be unique to the individual.
“Our analysis process can be used universally, ”says Ms. Huang, “One of our samples even included dyed hair and the test was 100 per cent accurate. The test was able to distinguish East Asians, Caucasians and South Asians.”
Dr. Beauchemin says she has got in touch with law enforcement agencies about using the new technology. She is also planning to collect more hair samples and continue her research with a goal of finding where exactly in the world hair sample is from, to look for more races and determine specific age.
“We are in a very similar place with protein-based identification to where DNA testing was during the early days of development,” said chemist Brad Hart. “This method will be a game-changer, and while we’ve made a lot of progress toward improving it, there are steps to go before this new technique is able to reach its full potential.”
1.What’s the main purpose of the text?
A. To analyze crime scenes.
B. To distinguish different races.
C. To show the usefulness of DNA testing.
D. To introduce a new identification method.
2.Which will be the most useful in identifying a person according to Brad Hart?
A. Chemical materials. B. Protein in hair.
C. DNA variations. D. Blood sample.
3.What’s the advantage of the protein-based identification over DNA testing?
A. Stability. B. Popularity.
C. Security. D. Convenience.
4.What can be inferred from the last paragraph of the text?
A. DNA testing will soon reach its full potential.
B. Protein-based identification remains to be improved.
C. Protein-based identification has replaced DNA testing.
D. DNA testing develops as rapidly as protein-based identification.
高三英语阅读理解中等难度题查看答案及解析
Robert is good at languages , _______ we all know .
| A．because | B．for | C．as | D．since |
高三英语单项填空简单题查看答案及解析
The sun is bigger than the moon , ___ we all know it.
A.and B.as C.which D.it
高三英语单项填空简单题查看答案及解析