题目: 当停运给水泵发生倒转时,应立即合闸启动。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1114/c0fb8bb524759af2d11436bf8e7731e3.html 下面是错误答案,用来干扰机器的。参考答案:B, C, D
题型:阅读理解 TV PROGRAMMES(节目)Channel(频道) 1 Channel 218:00 Around China 17:45 Computers Today18:30 Children’s Programme 18:10 Foreign Arts19:00 News 18:30 English Classroom19:30 Weather Report 19:00 Animal World19:40 Around the World 19:25 China 200320:10 TV play: Sisters 20:20 Sports21:00 English for Today 21:00 TV play: Guo Lanying21:15 Popular Music 21:45 English News21:55 Talk Show 22:06 On TV Next Week小题1:If you want to watch a soccer game, the best programme for you would be ______.A.TV PlayB.SportsC.Around the WorldD.Talk Show小题2:The programme of ______ will let you know much about Western countries.A.SistersB.Around ChinaC.Around the WorldD.On TV Next Week小题3:If you want to know something about tigers, elephants and monkeys, you can watch TV at _____.A.19:00B.18:00C.20:10D.18:10小题4:English Classroom is a programme that ______.A.lets you know something about classroomsB.tells you something about studentsC.lets you know something about school lifeD.teaches you English小题5:The programme at the end of Channel 2 means ______ on TV next week.A.newsB.programmesC.peopleD.places 查看答案
题型:实验题 (6分)一个未知电阻Rx,阻值大约为10kW—20kW,为了较为准确的测定其电阻值,实验室中有如下器材:电压表V1(量程3V、内阻约为3kW)电压表V2(量程15V、内阻约为15kW)电流表A1(量程200mA、内阻约为100W)电流表A2(量程5mA、内阻约为10W)电流表A3(量程0.6A、内阻约为1W)电源(电动势为3V,内阻不计)滑动变阻器R的最大阻值为200W开关S、导线等a.在实验中电压表应选 ,电流表应选 .b.为了尽可能减少误差,请你在虚线框中画出本实验的电路图.c.用本实验方法测出的电阻值比真实值偏 (填“大”或“小”) 查看答案