题目内容
（请给出正确答案）
A.had killed them
B.must kill them
C.should kill them
D.would have killed them
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更多“Doctors are now able to curepe…”相关的问题
根据下列材料请回答 31～35 题：
A
Now satellites are helping to forecast the weather．They are in space，and they can reach any part of the world．The satellites take pictures of the atmosphere(大气)，because this is where the weather form．They send these pictures to the weather stations．So meteorologists(气象学家)can see the weather of any part of the world．From the pictures，the scientists can often say how the weather will change．
Today，nearly five hundred weather stations in sixty countries receive satellite pictures．When they receive new pictures，the meteorologists compare them with earlier ones．Perhaps they may find that the clouds have changed during the last few hours．This may mean that the weather on the ground may soon change，too．In their next weather forecast，the meteorologists can say this．
So the weather satellites are a great help to the meteorologists．Before satellites were invented，the scientists could forecast the weather for about 24 0r 48 hours．Now they can make good forecasts for three or five days．Soon，perhaps，they may be able to forecast the weather for a week or more ahead．
第 31 题 Satellites travel______．
A．in space
B．in the atmosphere
C．above the ground
D．above space
Television works in much the same way as radio.In radio, sound is changed into electromagnetic waves which are sent through the air.Experiments leading to modern television took place more than a hundred years ago.By the 1920s inventors and researchers had turned the early theories into working models.Yet it took another thirty years for TV to become industry.
The influence of TV on the life of the people is incalculable: it can influence their thoughts and their way of life.It can also add to their store of knowledge.Educational TV stations offer teaching in various subjects.Some hospitals use TV for medical students to get close-up views of operations.At first television programs were broadcast in black-and-white.With the development of science and technology, the problem of how to telecast them in full color was solved and by the middle 1960s the national networks were broadcasting most of their programs in color.
The programs that people watch are not only local and national ones.Since the launching of the first communications satellite, more and more programs are telecast ‘live’ from all over the world.People in San Francisco were able to watch the 1964 Olympic Games in Tokyo.And live telecasts now come form. outer space.In 1969, the first astronauts to land on the moon televised their historic ‘moon walk’ to viewers on the earth.Since then, astronauts have regularly sent telecast to the earth.
1.The launching of communications satellites make it possible for people in San Francisco to ________.
A.get close-up views of operations
B.watch the 1964 Olympic Games in Tokyo
C.store knowledge
D.watch national programs
2.The development of science and technology made it possible for television programs to ______.
A.be telecast in San Francisco B.be telecast in full color
C.be telecast in Tokyo D.be telecast in black-and-white
3.The word ‘incalculable’ means _____.
A.easy to tell
B.difficult to tell
C.very great
D.very small
4.Television is said to be the modern wonder of electronics, because_____.
A.it influences people’s way of life
B.it brings the world into people’s own home in sight and sound
C.it works as radio
D.it makes people see far
5.Television became an industry in ______.
A.1950
B.the 1950s
C.the 1920s
D.the 1960s
A.It
B.That
C.There
D.This
Maybe we’ll soon be able to forecast the weather fo______．
A．one day
B．two days
C．five days
D．seven days or even longer
_____you turn on Home With Kids(家有儿女)，you’11 never be able to turn the TV off．
A．If
B．Because
C．Although
D．As
A.nor
B.or
C.of
D.off
139 By which means is a contractor able to control cost overruns due to changing requirements？ A. Project data review
B. Change order
C. Purchase order amendment
D. Change control
E. None of the above
A、has been
B、would have been
C、had been
D、was
A Project data review
B Change order
C Purchase order amendment
D Change control
E None of the above.
heck) my side.________
A、examine
B、push
C、stop
D、pull
