The author quotes the case of Albert Einsteito illustrate _____________.
·that measurements are keys to success iscience
·that accuracy of mathematics
·that the investigations are important iscience
·that the mathematical calculations may test his investigations

单选题
·The way he uses his tools.
·the difference between scientists and ordinary people
·works not only under one set of conditions at one time, but also under the same conditions at other times
·that the investigations are important in science