A scientist constantly tried to defeat his hypotheses,his theories,and his conclusion.
A scientist constantly tried to defeat his hypotheses,his theories,and his conclusion.
A、科学家总是不断地试图推翻他的假设、理论和结论。
B、科学家经常设法否定自己的假设，推翻自己的理论，并放弃自己的结论。
C、科学家总是试图推翻他的假设、理论和结论。
D、科学家需要不断地经常设法否定自己的假设，推翻自己的理论，并放弃自己的结论。
【正确答案】：B
【题目解析】：p73
Top
×
×