单项选择题

The writer' s main purpose in writing the passage is to say that ______.

A．science is just at its beginning
B．science has greatly improved man's life
C．science has made profound progress
D．science has done too little to human beings

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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

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