单项选择题

The principle discovery in this century shows ______ .

A．man has overthrown Newton' s laws of physics
B．man has solved a new set of gigantic puzzles
C．man has lost many scientific discoveries
D．man has given up some of the once accepted theories

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热门试题

单项选择题

The writer's attitude towards science is ______ .

A．critical
B．approving
C．neutral
D．regretful

单项选择题

It is true that ______ .

A．everyone is interested in scientific findings
B．the average man often uses in his own vocabulary what was once technical language not meant for him
C．an educated person would be expected to know most technical terms
D．various professions and occupations often interchange their dialects and jargons