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After the passage the author will talk about______.
A．the principles of designing lenses
B．techniques of making contact lenses
C．the design of photographic lenses
D．styles of lenses
答案
更多“After the passage the author will talk about______.A．the principles of designing lensesB．t”相关的问题
第1题
According to the passage,the hunters imitate ostriches because_____.
A．they want to gain the trust of their intended prey
B．they would like to entertain each other after a hard day's work
C．ostriches are easier to imitate than elands
D．if seen they could hide their heads in the ground
第2题
It can be concluded from the passage that ______.
A．men suffer more from sun's radiation than women do
B．men will be more exhausted than women after a long trip
C．the higher proportion of fat in women's body makes them easier to lose weight
D．an aged man can still exercise his body as he was young
第3题
听力原文： Pyramids along the Nile River are the most interesting buildings in the world. Thousands of years ago in Egypt, kings built the pyramids. They used to build them as their tombs. The kings thought the pyramids would help them find life after death. They also wanted the world to remember them as important people.
The oldest pyramid we know today is the one near Sahara in Egypt. It is about 5 000 years old. The largest is the pyramid of Khufu. It is made of two million three hundred thousand huge stones, most of them higher than a person. It is about 114 meters high. To build the pyramid of Khufu, 100000 men worked for twenty years. We know there were wonderful treasures in the pyramid. Robbers went into the pyramids and took many of these treasures. Today some of the treasures are in museums though.
How did the people of ancient days build the pyramids？ How did they carry and lift the huge stones？ Each stone fits so well and they didn't have our modern machines. Scientists have studied the pyramids but no one can say for sure how they did it.
29. Which of the following is the reason of building pyramids according to the passage？
30.When did the first pyramid come into existence？
31.Which of the following statements is true about the biggest pyramid？
(30)
A．To be used as rooms.
B．To help find life after death.
C．To remember the important workers.
D．To communicate with others in the sky.
第4题
A.A.the; the; the
B.B.the; a; a
C.C.the; ×; the
D.D.×; the; the
第5题
In the last sentence of the passage, the word "they" refers to
A．return privileges.
B．all the factors.
C．buyer and seller.
D．money.
第6题
A．Going after a mouse.
B．Always using voices.
C．Purring when they are happy.
D．Arching their backs when they are afraid.
第7题
The driver _________.
A．had to return to the train station after leaving the stranger at the tavern
B．was going home after leaving the stranger at the tavern
C．lived at the tavern
D．was going away on the train
第8题
The passage is based on the author's _______.
A．experience of the changes
B．admiration of the changes
C．analysis of the changes
D．hope for changes
第9题
When did the scientists start working on a successor to the shuttle？
A．Immediately after the Columbia disaster.
B．One year after the Columbia disaster.
C．Years before the explosion of Columbia.
D．Not mentioned in the passage.
第10题
This passage is to ______.
A．criticize Theodore Dreiser
B．praise Theodore Dreiser
C．defend Theodore Dreiser
D．ridicule Theodore Dreiser
第11题
A．Adapt to the environment little by little.
B．Go skating immediately after arriving there.
C．Lie in bed and do nothing for a few 'days.
D．Take some medicine and have a good rest.
