. What is the main idea of the passage? ________
A.The theory of relativity. B.Exactness is the core of science. C.Scientists are different from ordinary people. D.Exactness and ways of using tools are the keys to the making of a正确答案D
Scientist.
. What is the main idea of the passage? ________
A.The theory of relativity. B.Exactness is the core of science. C.Scientists are different from ordinary people. D.Exactness and ways of using tools are the keys to the making of a正确答案D
Scientist.
