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【单选题】
钾和钠的性质相似，下列说法中能最好地解释这个事实的是 （ ）A.
都是金属元素
B.
原子半径相差不大
C.
最外层电子数相同
D.
最高化合价相同
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【简答题】一般 Java 程序的类主体由两部份组成:一部分是 ,另一部分是 。
【单选题】Which of the following statements is TRUE according to the passage?
A.
Many fields of science and technology are now using CAD and CAM.
B.
High technology is nothing but a new type of teamwork plus CAD and CAM.
C.
The author gives some details in the passage about barriers between traditional design and manufacturing function.
D.
Experts from different fields have to cooperate to develop a product from concept to production.
【简答题】Technology itself, and its effective use ____________ (不会局限在), the traditional science subject.
【简答题】编号23的药材为____。
【单选题】All the following are mentioned in the passage as reasons why children should learn science EXCEPT ______.
A.
making better sense of things around them
B.
improving their decision-making ability
C.
cultivating their problem-solving ability
D.
developing their total personality
【单选题】It is a curious ______ that we think of the physical sciences as 'hard', the social sciences as 'soft', and the biological sciences as somewhere in between.
A.
analogy
B.
paradox
C.
dilemma
D.
illusion
【单选题】The physicist has made a discovery, _________of great importance to the progress of science and technology.
A.
I think which is
B.
that I think is
C.
which I think is
D.
which I think it is
【单选题】回答（50）题 查看材料
A.
Another distinction between science and technology has to do with the progress in each.
B.
Unlike science， progress in technology must be measured in terms of the human factor.
C.
What scientists discover may shock or anger people——as did Darwin's theory of evolution.
D.
Science and technology are different.
E.
We are all familiar with the improper use of technology.
F.
Science is a method of answering theoretical questions ; technology is a method of solving practical problems.
相关题目：
【简答题】Technology itself, and its effective use ____________ (不会局限在), the traditional science subject.