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【简答题】
为什么空心圆截面比实心圆截面的抗扭性能好？
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反馈参考答案：
举一反三
【单选题】下列可以试产的情况是( )。
A.
头位，骨盆出口平面狭窄
B.
臀位，骨盆出口平面狭窄
C.
臀位，骨盆入口平面狭窄
D.
头位，骨盆入口平面狭窄
E.
头位，中骨盆平面狭窄
【单选题】The incoherence in Britains science education policy reveals that
A.
science graduates are oversupplied in job market.
B.
old universities are producing more graduates than new ones.
C.
students are not interested in pursuing scientific degrees.
D.
science graduates are not favorably received by the society.
【简答题】En primavera está cubierto _____ flores de colores.
【简答题】如图中，与平面BCGF垂直的平面有______个．
【单选题】There is concern around the apparent inability of science education to counter current negative perceptions of science in both developing and industrial countries. These concerns have【B1】______consens...
A.
summed up
B.
resulted in
C.
came as
D.
insisted on
【单选题】It has been proved that it ______ to invest more in education and science research projects.
A.
pays
B.
costs
C.
takes
D.
gets
【简答题】A．Art. B．Law. C．Science. D．Education.
【单选题】' It can be concluded that science education has reached anew phase of development.
A.
grade
B.
class
C.
standard
D.
stage
【单选题】Science Education for a New Age The very great advances in science just before and after the midpoint of the twentieth century have caused education in the United States to realize that science teachi...
A.
The public school must educate both producers and users of scientific services．
B.
During the past twenty years science has played an important part in shaping the character of our civilization．
C.
Yet our science teaching of nonscientis’s in school and college has built up mistaken ideas, dislikes, and the common boast．
D.
The public school system, however, has no such choice, for the two jobs must be carried on at the same time．
E.
A student should learn something about the character of scientific knowledge, how it has been developed, and how it is used．
F.
Unfortunately, however, the science teaching in the'past failed to see the connection between the scientific advancement and human welfare． 第 46 题 请选择（1）处的最佳答案．
【单选题】According to the interviewee, what is the problem of the present science education?
A.
Scientific facts and principles are too dull to attract students.
B.
There is little connection between science and daily life.
C.
The content of the science teaching is too old.
D.
Teachers do not provide enough help in students' learning.
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