题目内容

中微子的速度一定能超过光速。()

A. 对
B. 错

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我们可以证明右手中微子的存在。()

A. 对
B. 错

环R与环S同构,则R、S在代数性质上完全一致。()

A. 对
B. 错

Whatkindoftopicsaregoodtopics?

A. Topicthatismeaningfultonotonlyyourself,butmorepeople-peopleofdifferentages,genders,majorsandcultures.
B. Topicrelatedtopeople’swellbeings.
C. Topicthattheaudiencedon'tknowmuchabout.
D. Topicthatmayinterestyouraudience.

Whicharethewaystoorganizeandanalysethematerialseffectively?

A. Readefficiently.
B. Keepaspeechmaterialfile.
C. Knowwhentostop.
D. Synthesizetheinformationyouhavefoundinmultiplesources.

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