题目:
每一条气源支管的最低点或最高点要安装排污阀。
答案:
参考答案:错
每一条气源支管的最低点或最高点要安装排污阀。
参考答案:错
已知某反比例函数的图象经过点(m,n),则它一定也经过点[ ]
A、(m,-n)
B、(n,m)
C、(-m,n)
D、(|m|,|n|)
阅读理解。
The science of physics today is as current as the morning newspaper. Indeed, as a result of new advances
in physics and their rapid application to inventions designed to satisfy man' s wants, the world itself has been
changing rapidly. Space technology, industrial technology, and the technology of the home, the farm, the office,
the bank, and the department store have all been revolutionized.
Clearly, every grown-up today would understand the world he lives in much better if he knew something
about physics. Whether it is Congress voting huge sums of money for new warships, space exploration, or
atomic energy, the office staff learning to use a new computer, son Bobby wanting to know about going to
the moon or the housewife learning to operate a new electric stove, physics seems to be everywhere.
Teachers in thousands of schoolrooms in America are trying to communicate some of the excitement and
importance of these new developments to their students. They know that some of their eager students will
someday be scientists and will themselves then contribute to the development of new knowledge or its
application to new things.
But in any case, they can be sure that if they bring a knowledge of science (any science) to their students in
meaningful and interesting ways, they have contributed much to helping each one live a more meaningful life.
1. The application of new advances in physics to inventions ____.
A. may solve all the problems in teaching
B. can help people understand the meaning of life
C. is intended to meet people's needs
D. makes people communicate easier without face to face
2. According to the passage, many American teachers are making efforts to do all of the following
EXCEPT ____.
A. arousing(激起) their students' interest in physics
B. making their students understand the importance of physics
C. giving their students the information of new advances in science
D. creating excitement about their new inventions among their students
3. The word "themselves" in the third paragraph refers to ____.
A. some American teachers
B. some of the eager students
C. the new developments
D. the scientists in physics
4. The first two paragraphs of the passage mainly tell us ____.
A. new advances in physics can result in new inventions
B. physics is widely used in our life
C. the world has been changing rapidly
D. space and industrial technology have all been revolutionized
小儿急性白血病的治疗,哪一项是错误的()
A.尽早给予化疗
B.尽可能强烈化疗
C.分阶段连续化疗
D.不用分型,化疗越强烈越好
E.分型治疗
经过了杀菌工序的啤酒称为熟啤酒。
治安管理措施本身既有打击又有保护的双重作用。( )