题目内容

在Zm中,等价类a与m满足()时可逆。

A. 互素
B. 相反数
C. 互合
D. 不互素

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Whatcanyoudoifyouwanttospeakwithapropervolume?

A. Standupstraight.
B. Openyourmouthanddropyourlowerjaw.
C. Breathewithyourdiaphragm.
D. Findyourloudestvoice.

Whichofthefollowingstatementsis/aretrue?

A. Inflectionsarethechangesinyourpitch
B. Thereasonyouwillstammerinthespeakingcontestisthatyouarenotsurewhatyouaregoingtosay
C. Youcanreplacepausesinyourspeechwithfillerwords
D. Youcanmakeyourspeechfluentbyspeakingnonsense

Publicspeakingisacombinationof“performing”and“speaking”.

A. 对
B. 错

Tomakethemostofourvoicetodeliveraneffectivespeech,youshouldpayattentiontoyourvolume,pace,rhythmandtone.

A. 对
B. 错

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