单项选择题

The applied scientist______.

A．does original research to understand the basic law
B．applies the results of research to practical problems
C．is not interested in practical problems
D．provides the basic knowledge for the pure scientist

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单项选择题

What is a scientific approach used to prove

A．The true value of the product.
B．The buyers' reasoning mind.
C．The true appearance of the product.
D．The high quality of the product.

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