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ac220 两个ac220的电磁阀?踩下脚踏开关后电磁阀1立刻通电,电磁阀2延时通电!这个小ac220 两个ac220的电磁阀?踩下脚踏开关后电磁阀1立刻通电,电磁阀2延时通电!这个小电路,我想了半天明明一个时 踩一下脚踏开关 ,一个电磁阀先通电再断电,然后另一个电磁阀再通电 再断电 ,请问需要哪些零件我想设计一个电路 踩一下脚踏开关,一个电磁阀先通电延时0.3S,再断电,然后另一个电磁阀再通 I LONG TO SEE YOU AGAIN 和 YOU ARE THE ANGEL MISS ME HAPPY这两句话对我很重要可我不懂 、 如今,英语正变得越来越重要.English is becoming ()()()() today.9点15钱回答! 英语填词语You( I )so pretty today. 今天我们需要你帮忙教英语 today we need you to （ ）to（ ）English. 男孩之间的爱用英文怎么表达?（提示：2个大写英文字母） 怎么样才能带着感情大声朗读英语除了发音外的办法,发音准不代表读得就有感情 30人爱看电视用英语表达 表示爱女友的英文除了（我爱你）多一点 打的要清楚点 love story 英文歌 男女对唱的如题 it is ok if it takes you a while to feel yourself again请帮忙翻译下 英语翻译It's OK if it takes you a while to feel yourself again when you go to a new place or meet new people . need的用法谁给我讲一讲?I ____buy any wine.A need not B.don't need C.don't need to选什么?为什么 It takes too long what size coat would you like?回答：中号的（翻译） what size pizza would Ted like?翻译! What size would you like? 什么动物最团结?为什么?求个例子 he has had the book for two days/he has bought the book for two days哪个句子正确啊 动物为什么会团结 it ---two days since i bought the dictionary.A.is B. has been C. was D.A and B 急啊! He has bought the car since that day不改变时态 -I don't need the book tonight.-_______,I'll keep it until tomrrow A.in case B.in that case I bought my pen tow days ago.(改成since two days ago) I—— —— my pen since two days ago. 电子计算机主要以什么为标致来划分发展阶段的 I'll keep his address ( ) I need it.A.so that B.in order that C.in case D.when 写三个“I bought the book two days ago.”的同义句 电子计算机的分代主要根据什么划分的 求一首英文歌曲,是个女生唱的.高潮部分是love, i don t need that proof,i don t need ring .i don t need anything 什么是that从句以及need和don`t,doesn`t need有什么区别? I don't need you tonight什么意思