织布机图片大全

测电源电动势的UI图中U1-U2/I1-I2表示算出的电阻是电源电阻吗?为什么? history museum为什么有时写成History Museum?谁有能力谁是英雄,谁无能力谁是狗熊! 带museum的词组比如history museum Has he caught the train to London是什么意思 at the history museum和 in the history museum哪个正确 Has he caught the train to 英语翻译一虚拟语气①If it were to rain,we should call off the match.②If he hurried,he could have caught the train.二短文翻译①Each time I had to start school without the security of a single friend.②I wanted the security of knowin He ended up taking the train.翻译 He got up early enough _____ (cath) the train. they had great fun ( )the museum last sunday a.to visit b.visited c.visit d.visiting要理由 Last Sunday they visited our.改错2.Her is 30 years old now.3.I saw them play in the park at 8 o‘clock yesterday.4."Help yourself to some chicken."Mother said to Tom and John.改错 Men Always Remenber Love Because Of Romance Only Man always remeber love because of romantic only翻译一哈.最准确的. 加润滑油是通过使彼此接触面分离而减小摩擦的么?还有一个问题:用力踩动脚踏板使自行车前进时,后轮与地面间摩擦力的方向朝前还是朝后啊?真是麻烦你们了. 实验证明分离接触面能减小摩擦 使接触面分离是增大还是减小摩擦 车轴外装有滚珠,是变滑动为滚动减小摩擦还是使接触面分离减小摩擦? 减小摩擦力的方法中,“加润滑剂”也可以说成“使接触面彼此分离”吗? 每天运动一小时的体会怎么写 Daming visited the museum last Sunday.对Daming提问.是Who did visit还是who visited? up是什么意思 drive up 的中文含义 put和up用汉语表达什么意思? soak up的中文意思 《家》的开篇有一段生动的环境描写,说说你的感受 心得开头怎么写 新裝修房,第一年不供暖氣,地暖管子的水用流出来吗 请问：采暖方式是地暖.停暖时水管里的水是否应该放出?需要注意哪些问题? men always remember love because of romance only 句子翻译 I seek friends whose qualities illuminate （照亮）me and train me up for love .先解释一下seek、whose qualities 的意思,谢谢!再全部翻译一下好吗?谢谢!非常感谢! Buddies seek approval. But friends seek acceptance. 帮忙解释这句话是解释（explain）,不是翻译（translate）,谢谢了.用英语 用又...又...这样的词来形容井水,急.