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A．They are very easy to read.
B．They are cheap and popular.
C．They are translated into English.
D．They are convenient for the users.
答案
更多“A．They are very easy to read.B．They are cheap and popular.C．They are tra”相关的问题
第1题
A．They are smarter than human workers.
B．They are more productive than human workers.
C．They are very durable.
D．They are easy to design.
第2题
A.They could get protection from wild beasts.
B.They wanted to move around easily.
C.Natural shelters were very uncomfortable.
D.Permanent dwellings were easy to construct.
第3题
What does Peter say about the people in Florence？
A．They are very kind.
B．They are very easygoing.
C．They often speak more than one language.
D．They always eat pastas.
第4题
What is mentioned about bamboo blinds？
A．They were used to provide shade or act as partitions in offices.
B．They made the air in the building very humid.
C．They were easy to install.
D．They helped lower the temperature of the building.
第5题
As we know, sunlight is formed by seven different kinds of colored light. The wave length of each light changes, so the quantity of heat in each light changes, too. Flowers, especially their petals (花瓣) , are very weak and easy to the harm caused by high temperature. Black flowers can take in all the light waves, which cause the flowers to dry up in a high temperature. So the black flowers can hardly continue their lives. But red flowers, orange flowers and yellow ones can protect themselves from sunlight by reflecting (反射) the red light, orange light and yellow light, each of which has a large quantity of heat.
That is why red, orange and yellow flowers are very common in nature while black flowers are so unusual.
We can hardly find black flowers because ______.
A．they are easy to be eaten by animals
B．there are no black flowers in the world
C．the petals of black flowers are too strong
D．the light waves make the flowers dry up
第6题
What is said about Nad's presentations？
A．They are easy to understand.
B．They are expensive.
C．They are been rescheduled.
D．They include visual aids.
第7题
A．They are accurate and easy to pull.
B．Their shooting range is 40 yards.
C．They are usually used indoors.
D．They took 100 years to develop.
第8题
听力原文： Hi, there. Let me make a brief introduction of the brain first.
The brain tells the other parts of the body what to do. We think with our brain. We understand the world around us with our brain. However, doctors don't know much about how the brain works. Doctors can do many things with other parts of the body.
They can give a person a new heart. They can put an arm back on 'after it has been cut off. It is easy to study some parts of the body. However, it is difficult to know how the brain works. It is most difficult to work on a brain. If the brain is without enough blood for three to five minutes, the brain dies. So when doctors work on the brain, they only have three to five minutes to do their work] Doctors try new things on the brain, but they must be very careful. The brain is the center of those things that make us what we are.
Which of the following can't doctors do？
A．They can give a person a new heart.
B．They can give a person a new brain.
C．They can put an arm back on after it has been cut off.
第9题
What is the specific feature of fossil fuels？
A．They are colorless.
B．They are odorless.
C．They are rich in carbon.
D．They are easy to freeze.
第10题
It is easy for many kinds of insects to live in the desert because ______.
A．They only need a little food to survive
B．they are not afraid of the heat
C．They are too small to be attacked by other animals
D．they have a skin which is against water
