到上个月末,我们已经学了3000个英语单词了(翻译为英语)

九州逍遥2022-10-04 11:39:540条回答

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如图是小明奶奶家的电能表上个月末的用电情况.完成下列各题:
如图是小明奶奶家的电能表上个月末的用电情况.完成下列各题:
(1)表盘中的“5(10)A”的意义是该电能表
(2)表盘上标有3000revs/kw.h,小明学了知识后,做了个电学实验,他在这个电能表后面单独接一个用电器,6分钟内转盘转了120转,表明用电器消耗 电能,用电器的电功率为 .
(3)如果小明奶奶家只有两盏40W的日关灯和一台100W的25英寸彩电,平均每天各用4小时,则这个月末电表的读数是 kw.h(按30天计)
叫什么都没个性1年前1
chg9790chg 共回答了13个问题 | 采纳率84.6%
1)5表示额定工作电流,10表示最大工作电流.
2)消耗120/3000=0.04度(kw,h)电能,用电器电功率为0.04X60/6=0.4千瓦.
3)一个月用电量(2X0.04+0.1)X4X30=21.6kw.h.
英语翻译①他问我近来是否收到汤姆的来信.②当我到达车站的时候,六路车刚刚离开.③到上个月末,他们已经上了四节钢琴课.④你
英语翻译
①他问我近来是否收到汤姆的来信.②当我到达车站的时候,六路车刚刚离开.③到上个月末,他们已经上了四节钢琴课.④你来威海之前在北京工作多久了?⑤到目前为止,我们已经学了2000多个英语单词.⑥过去六十年里,威海发生了巨大的变化.⑦当他起床时,妈妈已经去市场了.⑧当她被送进医院时,他已经病了一个多月了.⑨我叔叔的汽车在路上抛锚了.⑩昨天,小红让我搭她的车去博物馆,
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He asked me whether I had heard from Tom recently.Bye the time I arrived at the bus station the No.6 drove away.They had had four piano classes by the end of last month.How long have you worked in Beijing before you came to Weihai?We have already learned 2000 English words so far.Great changes has take place in Weihai in the past 60 years.By the time he got up,his mother has went to the market.He have been sick for more than a month by the time she was sent to the hospital.My uncle's car broke down by the time he drove on road.Xiaohong picked me up to the museum yesterday.
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I had lived here for 10 years since the end of last month.
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By the end of last month ,we had learnt 2200 words.