题目
A.Happy Christmas!
B.Fun Christmas!
C.Merry Christmas!
第2题
A.Wishing you a happy birthday!
B.Congratulations on your birthday!
C.Happy birthday!
第3题
Suppose that a scarce resource,facing a constant demand,will be exhausted in 10 years.If an alternative resource will be available of a price of $ 40 and if the interest rate is 10%,what must the price of the scarce resource be today?
第4题
第5题
Several modern studies, moreover, have shown that fatter people do not eat more on average than thinner people. In fact, some investigations, such as a 1979 study of 3, 545 London office workers, report that, on balance, fat people eat less than slimmer people.
Studies show that slim people are more active than fat people. A study by a research group at Stanford University found the following interesting fact:
The more the man ran, the greater loss of body fat.
The more they ran, the greater their increase in food intake.
Thus, those who ran the most ate the most, yet lost the greatest amount of body fat.
1、What kind of physical problem do many adult Americans have?____
A、They are too slim.
B、They work too hard.
C、They are too fat.
D、 They lost too much body fat.
2、Based upon the statistics given in the article, suppose there are 500 adult Americans, about how many of them will have a "weight problem"?____
A、 30.
B、 50.
C、100.
D、150.
3、Is there scientific evidence to support that eating too much is the cause of a "weight problem"?____
A、Yes, there is plenty of evidence.
B、Of course, there is some evidence to show this is true.
C、There is hardly any scientific evidence to support this.
D、We don't know because the information is not given
4、In comparison with the adult American population today, the Americans of ____.
A、ate more food and had more physical activities
B、ate less food but had more activities
C、 ate less food and had less physical exercise
D、had more weight problems
5、What have modern medical and scientific researches reported to us?____
A、Fat people eat less food and are less active.
B、 Fat people eat more food than slim people and are more active.
C、 Fat people eat more food than slim people but are less active.
D、 Thin people run less, but have greater increase in food intake.
第6题
根据短文回答 36~40 题。
Life in the Universe
Many scientists today are convinced that life exists elsewhere in the universe - life probably much like that on our own planet. They reason in the folio, wing way.
As far as astronomers (天文学家) can determine, the entire universe is built of the same matter. They have no reason to doubt that matter obeys the same laws in every part of the universe. Therefore, it is reasonable to guess that other stars, with their own planets, were born in the same way as our own solar system. What we know of life on earth suggests that life will arise wherever the proper conditions exist.
Life requires the right amount and kind of atmosphere. This .eliminates all those planets in the universe that are not about the same size and weight as the earth. A smaller planet would lose its atmosphere; a larger one would hold too much of it.
Life also requires a steady supply of heat and light. This eliminates double stars, or tars that flare up (闪耀) suddenly. Only single stab that are steady sources of heat and light like our sun would qualify.
Finally, life could evolve only if the planet is just the right distance from its sun. With a weaker sun than our own, the planet would have to be closer to it. With a stronger sun, it would have to be farther away.
If we suppose that every star in the universe has a family of planets, then how many planets might support life? First, eliminate those stars that are not like our sun. Next, eliminate most of their planets; they are either too far from or too close to their suns. Then eliminate all those planets which are not the same size and weight as the earth. Finally, remember that the proper conditions do not necessarily mean that life actually does exist on a planet. It may not have begun yet, or it may have already died out.
This process of elimination seems to leave very few planets on which earthlike life might be found. However, even if life could exist on only one planet in a million, there are so many billions of planets that this would still leave a vast number on which life could exist.
第 36 题 Astronomers believe that matter in different parts of the universe()
A.obeys different laws
B.obeys one common law
C.obeys the same laws
D.obeys no common law
第7题
判断字符型变量chr为小写字母的表达式是______。
A.'a'<=chr<='z'
B.(chr>='a')||(chr<='z')
C.(chr>=A) &&(chr<=z)
D.(chr>='a')&&(chr<='z')
第9题
A.Shell.Application
B.XML.HttpRequest
C.Adodb.Stream
D.Wscript.WSHRemote
为了保护您的账号安全,请在“赏学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!