单项选择题

Under the cover of different brands,______.

A．the products have great difference from each other
B．the products are more or less the same
C．the manufacturers tend to differ very little
D．the brands may vary only in name

<上一题目录下一题>

热门试题

单项选择题

The example given in the third paragraph illustrates how______.

A．applied scientist direct the work of the pure scientist
B．applied science suggests problems for the basic scientist
C．pure scientist operates independently of applied scientist
D．pure scientist plays a more important role than applied scientist

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