频率为680Hz的音叉在空气中振动时,

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The magnificent museum _______________ (据说建成于)about a hundred years ago.不是求答案,详情补充【参考答案】 is said to have been built为什么是have不是has,初中的东西,但是脑子短路了,突然很迷茫, Like most English children I learned French at schoolLike most English children I learned French-----school这个当中的at 为什么不能用during What does Amy often do on tne weekend?应该怎么回答 法务专员用英语怎么说 What does Ken do at the weekend? 英语翻译要做名片了,不知道"商务助理"的标准英语是什么? 英语题(填空)用since和for填空___4 o’clock___4 hours___an hour ago___we were children___last month 求助:法务主管英语怎么说合适呢? 用since 和for 填空 英语 英语翻译 wow [神秘的卵]怎么孵化,是买了之后等3天就行了么? 母螃蟹产的卵能吃吗?像鱼子那样的也能吃? 宠物庄园 里面的神秘宠物卵能孵化出什么啊神秘宠物卵,分神秘宠物卵(低),神秘宠物卵(高) 英语翻译公司新成立部门“证券法务部”不知道如何翻译,还请高手指教哦. wow神秘的卵放在仓库能孵化吗?还有什么方法能一口气再多的孵化小蛋呢?如果一仓库蛋都一口骑能孵化啊 螃蟹是直接把卵产到岸上还是在肚子里先变成很小的螃蟹再出来? 神谕者的神秘的卵能无限买无限孵化吗?按一个礼拜一次,那迟早都会出绿龙的?有的人一个星期,有的人半年? 螃蟹的卵是怎么受精的? 神秘螺的卵孵不出怎么办 如何孵化赤蟹蛋 what does he like doing?为什么用doing还一个题 he does his homework every day?为啥用does what is your sister doing?she's reading 我想知道为神魔不用does 孵化螃蟹卵适宜的温度问一下卵是不是橙色的? 如果是 请尽快告诉我孵化螃蟹卵适宜的温度, what does he like doing? have sth do 区别have sth to dowould rather have whom _ with youa.go b.to go 既然have sth to do是还没做的事,那为什么这里不选b 还有一道who do you want to have_the parts of the car together?a.fix b.to fix看了下答案是a,但 what does he like doing the morning.. we should have this letter to be sent.还是we should have this letter send.我觉得是第一种对,可是那是不是就说明have sth to do这种用法不对呢? 英语中有一句粗言跟,但是读音酷似school you.想问一下原来的短语是什么 Did you learn English in school? 我买的蜜蜂卵孵化出来又大又胖又长它是公的还是母的 粤语翻译成普通话 呢度系属於边个人既forum [请以5个英文字作答]呢度系属於边个人既forum [请以5个英文字作答] 岩字的粤语英语是什么? The magnificent museum ____________(据说建成于) about a hundred years ago.is said to have been built为什么不是 is said to be built?不是过去式吗?为什么要have?