How thd NASA’s investigators prove the reason of thsaster?

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问题 How thd NASA’s investigators prove the reason of thsaster?

选项 A、By studying the video tape.
B、By analyzing the data concerned.
C、By anatomizing seven astronauts’ body.
D、By making a simulated experiment.

答案D

解析细节判断题。新闻前面提到的导致“哥伦比亚”号失事的原因只是一个猜测，要想证明这一点还需要一些实证，于是“美国国家航空航天局模拟了泡沫材料碎片对机翼的冲击”，试验的结果“他们确信实验证实了他们的推论”，由此可以看出，确定的方法是通过模拟的实验，所以选项D的表述是正确的。

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专业英语四级

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How thd NASA’s investigators prove the reason of thsaster?

专业英语四级

Peopledonotanalyzeeveryproblemtheymeet.Sometimestheytrytorememberasolutionfromthelasttimetheyhadasimilarp

Whetherwewantitornotweareallgreedy(1)___nature.Fromthemomentwearebornandtothelastdayofourlifewe(2)

Evidenceofthebenefitsthatvolunteeringcanbringolderpeoplecontinuestorollin."Volunteershaveimprovedphysicalands

Evidenceofthebenefitsthatvolunteeringcanbringolderpeoplecontinuestorollin."Volunteershaveimprovedphysicalands

Whatistheconversationmainlyabout?

Thewomanworkedoffthefataroundher______bydoingexerciseeverymorning.

Rumorswerealreadybeginningto______thattheprojectmighthavetobeabandoned.

HowcanIevercompleteitifyoucontinuallymesomanysillyquestions?

Asthegoodsyouorderedarenowinstock,wewillshipthemwithout______asearlyaspossible.

TherecentannouncementthatGPs(全科医生)maysendpatientswithdepressionawaywiththesuggestionthatthey(1)_____a"mood-enhan

在专利权产生的条件中，专利权产生的积极条件主要包括()。

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