Evidence obtained from observation and experiment is often used to ________ a sc
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Evidence obtained from observation and experiment is often used to ________ a scientific theory.| A．confirm | B．claim | | C．conclude | D．calculate |
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答案
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解析
A
解析 考查动词辨析。confirm证实；claim声称，断言；conclude得出结论；calculate计算，估计。句意为：由观察和实验得出的证据通常被用来证实科学理论。故A项正确。 |
举一反三
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