[单项选择] For about three centuries we have been doing science, trying science out, using science for the construction of what we call modern civilization. Every dispensable item of contemporary technology, from canal locks to dial telephones to penicillin, was pieced together from the analysis of data provided by one or another series of scientific experiments. Three hundred years seems a long time for testing a new approach to human interliving, long enough to settle back for critical appraisal of the scientific method, maybe even long enough to vote on whether to go on with it or not. There is an argument. Voices have been raised in protest since the beginning, rising in pitch and violence in the nineteenth century during the early stages of the industrial revolution, summoning urgent crowds into the streets any day these days on the issue of nuclear energy. Give it back, say some of the voices, it doesn’’t really work, we’’ve tried it and it doesn’’t work, go back three hundred years
A. the exposure of DNA to the public is unnecessary
B. the tiny cell in DNA is a neat little machine
C. man knows nothing about DNA
D. man has much to learn about DNA

[单项选择]For about three centuries we have been doing science, trying science out, using science for the construction of what we call modem civilization. Every dispensable item of contemporary technology, from canal locks to dial telephones to penicillin, was pieced together from the analysis of data provided by one or another series of scientific experiments. Three hundred years seems a long time for testing a new approach to human inter-living, long enough to set back for critical appraisal of the scientific method, maybe even long enough to vote on whether to go on with it or not. There is an argument.
Voices have been raised in protest since the beginning, rising in pitch and violence in the nineteenth century during the early stages of the industrial revolution, summoning urgent crowds into the streets on the issue of nuclear energy. "Give it back," say some of the voices, "It doesn’t really work, we’ve tried it and it doesn’t work. Go back three hundred years and start again on som
A. Scientific experiments in the past three hundred years have produced many valuable items.
B. For three hundred years there have been people holding a hostile attitude toward science.
C. Modem civilization depends on science so man supports scientific progress unanimously.
D. Some people think three hundred years is not long enough to set back for critical appraisal of scientific method.

[单项选择]
For about three centuries we have been doing science, trying science out, using science for the construction of what we call modern civilization. Every dispensable item of contemporary technology, from canal locks to dial telephones to penicillin, was pieced together from the analysis of data provided by one or another series of scientific experiments. Three hundred years seems a long time for testing a new approach to human development long enough to settle back for critical appraisal of the scientific method, maybe even long enough to vote on whether to go on with it or not. There is an argument.
Voices have been raised in protest since the beginning, rising in pitch and violence in the nineteenth century during the early stages of the industrial revolution, summoning urgent crowds into the streets any day these days on the issue of nuclear energy. Give it back, say some of the voices, it doesn’t really work, we’d tried
A. Many valuable items were produced in the past.
B. Man supports scientific progress unanimously.
C. Some held hostile attitude toward science in the past.
D. Three hundred years is not long enough in science.