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R为灯泡,L为电感线圈,电流表和电压表均可视为理想电表,所加交流电源的电压u=220√2 sin100πt V,若保持交流电源的电压有效值不变,只将电源频率调整为100Hz,则下列说法中正确的是（ ）A,灯泡变 Are you tired?的同义句是什么? You can ___(relax) yourself in the park. 一、选词填空.1.They have it in a way different from ( ) in China.一、选词填空.1.They have it in a way different from ( ) in China.A.it B.this C.that D.way2.They usually use tea bags to ( ) their tea.A.do B.make C.like D.drink3.He takes a 接天莲叶无穷碧 映日荷花别样红现用来形容什么样的人 They are different from other schools in 映日荷花别样红常被人们引用来容什么人物 映日荷花别样红常被后人引用来形容什么样的人物 they quarrelled yesterday in that they have different opinions 水光潋滟晴方好现在被人们引用来形容什么的人物? 秋天都有什么果实呀 You look tired today .Did you go to bed late last night?Yes.I___computer games and forgot the time.A have played B was playing 选什么 为什么 You look tired today 什么意思 You look at tired today You look tired today是什么句型 我已不是我 英语怎么说 "这不是我说的."英语怎么说?This is not I said. 不是我的型英语怎么说 你要的不是我..用英语怎么说?急如题. 秋天有什么收获 秋天会收获什么 秋天来了,你们收获了什么?秋天了?今年的夏天怎么溜的这么快?还没有感觉到高温带来的难耐 竞一下子秋天了 是夏天太短 还是自己浪费了太多 秋天了 是收获的时候了 可发现整个夏天的耕耘 求写描写一种花 写一句感悟和它描写它样子的一段话急 一种花 写一句它的感悟 和一段它的样子的一段话 描写某一种花开放时的样子 英语单词were是何意 英语单词中的Hard是何意. He feels_____today than yesterday.A.tired B.more tireder C.much tired He worked for ___ ten hours yesterday.He feels very tired today 应该填什么 完形填空求讲解 People born under different star signs show different work charateristics.People born under different star signs show different work characteristics.Aries①happy if they have to work from 9 a.m.to 5 p.m.every day.They don’t l 初三阅读理解 速求 most western people believe12 star signsMost Western people believe 12 star signs and they think that one‟s date of birth decides his star sign. They also think that people born under different star signs have differen 春天到了草地像什么 people born under the same star is alike 同义句 people born under the same star ___ _____2空、、