Because of the fast pace of American life, many families can not eat together around the family table every evening. Many people have to be at work during the normal dinner hours.
For this reason, fast food restaurants have become very popular. These restaurants serve foods such as hamburgers, tacos, French fries. Fast-food restaurants are really fast. You don’t have to wait a minute or two for your food. They are also convenient. You may dress casually, and in some places you can even order from your car and drive away with your food without going to the restaurant. Finally, fast-food restaurants are inexpensive.
Fast food has its shortcoming, too. Most fast-food meals are not very healthy. They are often high in fat and cholesterol(胆固醇), and low in other important nutrients(营养). It is advisable not to eat too much those fast food.
The writer suggests that______.

A:we should eat more fast food B:we should not eat too much fast food C:we should avoid any fast food D:we should not serve fast food

Because of the fast pace of American life, many families can not eat together around the family table every evening. Many people have to be at work during the normal dinner hours.
For this reason, fast food restaurants have become very popular. These restaurants serve foods such as hamburgers, tacos, French fries. Fast-food restaurants are really fast. You don’t have to wait a minute or two for your food. They are also convenient. You may dress casually, and in some places you can even order from your car and drive away with your food without going to the restaurant. Finally, fast-food restaurants are inexpensive.
Fast food has its shortcoming, too. Most fast-food meals are not very healthy. They are often high in fat and cholesterol(胆固醇), and low in other important nutrients(营养). It is advisable not to eat too much those fast food.
Which sentence is TRUE

A:Fast food is popular because of the high fat. B:Fast food is good to us. C:Fast food has rich nutrients. D:Fast food has its advantage and disadvantag

D

The writer suggests that______.

A:we should eat more fast food B:we should not eat too much fast food C:we should avoid any fast food D:we should not serve fast food

D

Which sentence is TRUE

A:Fast food is popular because of the high fat. B:Fast food is good to us. C:Fast food has rich nutrients. D:Fast food has its advantage and disadvantage.

What is the coldest air temperature ever recorded on the Earth Where was this low temperature recorded The coldest recorded temperature on Earth was -91℃, which (51) in Antarctica in 1988.
We encounter an interesting situation when we discuss temperatures in (52) . Temperatures in Earth orbit actually range from about 20℃ to 120℃. The temperature depends upon (53) you are in direct sunlight or shade. Obviously, -120℃ is colder than our body can safely endure. Thank NASA science for well-designed space (54) that protect astronauts from these temperature extremes.
The space temperatures just discussed affect only our area of the solar (55) . Obviously, it is hotter closer to the Sun and colder as we travel away from the Sun. Astronomers estimate temperatures at Pluto are about -210℃. How cold is the lowest estimated temperature in the entire universe Again, it depends upon your (56) . We are taught it is supposedly (57) to have a temperature below absolute zero, which is -273℃, at which atoms do not move. Two scientists, whose names are Cornell and Wieman, have successfully cooled down a gas to a temperature barely (58) absolute zero. They won a Nobel Prize in Physics in 2001 for their work—not a discovery, in this case.
Why is the two scientists work so important to science
In the 1920s, Satyendra Nath Bose was studying an interesting (59) about special light particles we now call photons. Bose had trouble (60) other scientists to believe his theory, (61) he contacted Albert Einstein. Einstein’s calculations helped him theorize that atoms (62) behave as Bose thought—but only at very cold temperatures.
Scientists have also discovered that (63) atoms can help them make the world’s atomic docks even more accurate. These clocks are so accurate today they would only lose one second (64) six million years! Such accuracy will help us travel in space because distance is velocity times time (d=vt). With the long distances involved in space (65) , we need to know time as accurately as possible to get accurate distance.

63（）

A:ultra-small B:ultra-fast C:ultra-hot D:ultra-cold

What is the coldest air temperature ever recorded on the Earth Where was this low temperature recorded The coldest recorded temperature on Earth was -91℃ which (51) in Antarctica in 1983.
We encounter an interesting situation when we discuss temperatures in (52) . Temperatures in Earth orbit actually range from about +120~C to -120~C. The temperature depends upon (53) you are in direct sunlight or shade. Obviously, -120℃ is colder than our body can safely endure. Thank NASA science for well-designed space (54) that protect astronauts from these temperature extremes.
The space temperatures just discussed affect only our area of the solar (55) . Obviously, it is hotter closer to the Sun and colder as we travel away from the Sun. Astronomers estimate temperatures at Pluto are about -210℃. How cold is the lowest estimated temperature in the entire universe Again, it depends upon your (56) . We are taught it is supposedly (57) to have a temperature below absolute zero, which is -273℃, at which atoms do not move. Two scientists, whose names are Cornell and Wieman, have successfully cooled down a gas temperature barely (58) absolute zero. They won a Nobel Prize in Physics in 2001 for their work not a discovery in this car.
Why is the two scientists’ work so important to science
In the 1920s, Satyendra Nath Bose was studying an interesting (59) about particles we now call photons. Bose had trouble (60) other scientists to believe (61) he contacted Albert Einstein. Einstein’s calculations helped him theorize (62) behave as Bose thought but only at very cold temperatures.
Scientists have also discovered that (63) atoms can help them make the world’s atomic clocks even more accurate. These clocks are so accurate today they would only lose one second (64) six million years! Such accuracy will help us travel in space because distance is velocity times time (d=v×t). With the long distances involved in space (65) to know time as accurately as possible to get accurate distance.

A:ultra-small B:ultra-fast C:ultra-hot D:ultra-cold

1997年出现了Ultra ATA接口，有关它的说法不正确的是 ( )

A:硬盘传输模式转向DMA模式 B:它仍需要将数据在传到主存之前进行暂存 C:它已成为目前IDE硬盘的流行接口 D:Ultra ATA/33的数据传输速率可达到33.3MB/s

1997年出现了Ultra ATA接口，有关它的说法不正确的是 ( )

A:硬盘传输模式转向DMA模式 B:它仍需要将数据在传到主存之前进行暂存 C:它已成为目前IDE硬盘的流行接口 D:Ultra ATA/33的数据传输速率可达到33.3MB/s