t questions.
A、however
B、but
C、than
第3题
A.first of all a scientist
B.no more than a born naturalist
C.a scientist as well as a naturalist
D.a naturalist but not a scientist
第4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
第5题
A.an inventor as well as a scientist.
B.a scientist rather than an inventor.
C.not a scientist but an inventor.
D.neither a scientist nor an inventor.
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