单项选择题

Finer and finer division in the field of science has led to______.

A．greater interdependence of all the various sciences
B．the elimination of the need for specialists
C．greater independence of all the Various sciences
D．the greater need for the applied scientists
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单项选择题
The statement the horizons of science have expanded ( Line 1, Para. 1 ) means that______.
A．the horizon is enlarged by scientists
B．scientists can observe further space
C．scientist9 are making efforts to expand the outer space
D．science has developed more fields
单项选择题
We can learn from the passage that______.
A．both pure scientists and applied scientists are not equally important
B．the aircraft designer stands for the pure scientist
C．geophysics and biochemistry are examples of' new specialties
D．pure scientists are more important
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