. What makes a scientist according

. What makes a scientist according to the passage? ___________A. The tools he uses. B. The way he uses his tools.C. His ways of learning. D. The various tools he uses.【答案】B。67. The underlined part in the passage shows___________.A. the importance of information B. the importance of thinkingC. the difference between scientists and ordinary peopleD. the difference between carpenters and people with other jobs【答案】C。68. A sound scientific theory should be one that ___________.A. works not only under one set of conditions at one time, but also under the same conditions at other timesB. does not allow any changes even under different conditionsC. can be used for many purposesD. leave no room for improvement【答案】A。69. The author quotes the case of Albert Einstein to illustrate ______________.A. that measurements are keys to success m scienceB. that accuracy of mathematicsC. that investigations are important scienceD. that the mathematical calculations may test his investigations【答案】C。70. 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 scientist.【答案】D。