单项选择题

A successful scientist______.

A．has wide interests and reads original books or articles
B．is a person with originality, which comes from his diverse knowledge
C．not only reads widely but also cultivates diverse interests
D．benefits more from teaching than from his research

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单项选择题

The author maintains that______.

A．superficial reading is valueless
B．a successful scientist usually confines his reading to the problem under investigation
C．a research worker cannot benefit from superficial and "skim" reading over a wide field if he doesn't have a background of knowledge
D．if a research worker has wide interests, he is sure to succeed in his own specialty

单项选择题

In the second paragraph the author uses an analogy (类比) that assumes that general principles are similar to______.A) the wood C) the treesB) technical details D) fixed laws

A．In the second paragraph the author uses an analogy (类比) that assumes that general principles are similar to______.
B．the wood
C．technical details
D．the trees
E．fixed laws