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8:00 a.m. meetings are usually very productive.

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Telephone is recommended as a good way to schedule the first meeting.

Unit4ListeningTask4Mr.Smithisreportingtoalostcardtohisbank.Listentotheconversationandanswerthefollowingquestions.1.WhendidMr.Smithlosehiscard?2.Whatinformationisneededtoreportaloss?3.WherecanMr.Smithobtainanewcard?4.WhydoestheclerksaythatMr.Smithislucky?

Unit4ListeningTask2Mr.Brownistalkingwithaclerkinabank.Listentotheconversationandanswerthefollowingquestions.1.HowmuchunusedRMBdoesMr.Brownhave?Hehas_yuan.2.Whycan'tMr.BrowntaketheunusedRMBbacktohishomecountry?Because_.3.WhatistheexchangeratebetweenRMBandUSDinMr.Brown'smemo?It'soneUSdollarto_yuan.

电器按工作电压等级分为两种，低压电器用于交流电压（）、直流电压以下（）电路中；当电器工作在大于以上电路电压时，称为（）。、_、____。