选择性培养基

多大功率电机可以带动20吨的物体水平放置的20吨物体依靠直径为500mm的轨道轮移动,转速为60r/min.（2台同型号电机控制）,轨道轮齿数为30,电机上自带的齿轮数为10,求电机选用多大功率的电机 Access数据库密码问题数据库文件名：data.mdb,10进制时间串：-2100371647,16进制时间串：82CEDF41,数据库密码串：26 6C CA 37 F2 D3 B9 FA 67 C9 0D E6 B5 21 A0 60 F4 03 3B 36 54 E5 DF B1 F2 63 13 43 4A 38 B1 33 B1 F6 79 5B 17 翻译：熟悉办公软件,会photoshop和access数据库处理.（《计算机一级》,access数据库课76分） 英语翻译the Supplier shall provide access to the Customer and any replacement supplier for up to\x05[NUMBER] months after termination of the Project Agreement to such information relating to [the Project] that remains in the possession or control Is that a book on farming?If so,I want to buy ______. (one OR it?) ()() will believe him()() 没有人再会相信他了. 5.I visited my friends in Beijing twice a month last year.（就划线部分提问） ______ ______did you visited your friends in Beijing last year? There are a lot of students in the reading room,most of___with their eyes.关于定从的问题There are a lot of students in the reading room,most of___with their eyes___on and their heads bent over their book.A.whom;fixing B.them;fixed C.whom;fixed this summer holiday前面用什么介词? in summer holiday与this summer holiday的区别或者用法,为什么有的时候不用加介词? 求英文翻译,We often call him by his nickname中文怎么翻译 求翻译!We often call him by his nickname是什么意思啊 We often call_____(he)Liangliang.为什么填him 关于酒店注意消防安全的通知怎么写? How much is that book（同义句）What's___ ___ ___ that book? i like it so much that i do it all day.已经抵达 I like the book very much.（就划线句子提问） _____ do you ______ _______ the book 谁能把“Give him an inch,and he will take a mile”改成If从句+主句的形式?把下面的也改一下1：Early to bed and early to rise makes a man healthy ,wealthy and wise.（早睡早起,精神百倍）2:God helps those who help them selv 茶马天下怎么样 I give him a call.L_,he comes to my home 谁能把“Give him an inch,and he will take a mile”改成If从句+主句的形式?把下面的也改一下：1：Early to bed and early to rise makes a man healthy ,wealthy and wise.（早睡早起，精神百倍）2:God helps those who help them 全世界最好的茶是什么茶?如题,哪个国家的什么茶? You may drop in or just give him a call._____will do.A.Neither B.Whether C.All D.Either What do you k______ about the book Harry Potter 空缺处填什么? 大洋洲和南美洲分界线?急…… Did you know whom the book____?a.is belonged tob.is belonging toc.belongs ford.belongs to How do you like the book "Harry Potter?"(同意句） —— —— —— -------- ------- the "harry Potter 英语翻译我将带你到你想去的地方 翻译：I will take you to where you want to go第一个to有没有 分析成分go where you want to go分析成分 The advantage and disadvantage of studying abroad? accordingly,anyone who wishes to love and be loved will want to lasting relationshipsAform B develop Cmake D build up理由 带有动物名字的个性网名最好是繁体的,个性一点,麻烦各位哥哥姐姐了!不好意思,我要个性一点的 which is bigger,the sun or the moon?在此题中,sun 和 moon前的the起到什么作用?为什么要家加the?