【单选题】It is sometimes said that there is no such thing as the so-called 'scientific method'; there are only the methods used in science. Nevertheless, it seems clear that there is often a special sequence o...
A.
To show that air behaves like water in some aspects.
B.
To illustrate the special sequence of procedures involved in the establishment of the working laws of science.
C.
To indicate that it was difficult to use scientific methods to solve the problem of vacuum pump.
D.
To show how scientists make experiments to test their deductions.
【简答题】读“亚洲水稻的主要分布地区图”,完成下列问题。(8分) (1)世界水稻生产主要分布在_________、________和________降水丰富的地区。 (2)图示地区发展水稻种植业的区位优势有:①气候:__________ __ __ __;②地形:_______________________;③劳动力:___________________________。 (3)该区发展水稻种植业...
【简答题】读“亚洲水稻的主要分布地区”图,完成下列问题:(9分) (1)世界水稻生产主要分布在 、 和 降水丰富的地区。(3分) (2)图示地区发展水稻种植业的区位优势有:(3分) ①气候: ;②地形: ;③劳动力: 。 (3)该区发展水稻种植业,在解决人地关系矛盾方面的好处是: 。(1分) (4)亚洲水稻生产单位面积产量高,但商品率低的原因主要是 。(1分) (5)亚洲水稻种植业今后的发展方向是 。(1分...
【简答题】I happened (wait) for the bus when the accident happened.
【简答题】The other day, I happened to meet someone I hadn’t seen for many years. I couldn’t believe the change in him. In fact, he didn’t even seem like the 36 person. When I first knew Bill , back in 37 , he ...
【单选题】1 There is sometimes a last security check just before the plane ________.
【简答题】Sometimes I really doubt whether there is love between my parents. They are very busy working to 1 the family. They don’t act in the 2 ways that I read in books or I see on TV. 3 flowers to each other...
【简答题】The other day, I happened to meet someone I hadn’t seen for many years. I couldn’t believe the change in him. As a matter of fact, he didn’t even seem like the person. When I first knew Bill, back in ...
【简答题】完形填空。 It is interesting to visit another country, but there are sometimes problems when we don't know the 1 very well. It may be 2 to talk with the people there. We may not know how to use the telepho...
【简答题】The other day, I happened to meet someone I hadn’t seen for many years. I couldn’t believe the change in him. In fact, he didn’t even seem like the 21 person. When I first knew Bill , back in 22 , he ...