未知题型
Tom Murphy and his colleagues fire laser beams at reflectors on the moon with the aim to
A．measure the distance between the moon and the Earth.
B．calculate the speed of light.
C．check how long it takes light to cross it.
D．prove the equivalence principle more accurately.
- A.measure
B.
B．calculate
C.
C．check
D.
D．prove
E.
【参考答案】
D
事实细节题，考查目的细节。根据TomMurphy定位到第四段。该段紧承第三段，从该段首句Amorepreci......
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未知题型
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判断题
量的研究方法是以研究者本人作为研究工具，在自然情境下采用多种资料收集方法对社会现象进行整体性探究，使用归纳法分析资料和形成理论，通过与访谈对象互动对其行为和意义建构获得解释性理解的一种活动。()
