向心力做功吗

different qualities of material used to improve the quality of our products ,we asked for suggestions_______had used the productsA whoever B who C whichever D which为什么不能选B 两者有什么区别. _ a reply,he decided to write again.为什么是not having recieved,而不是not recieving? 英语翻译Synthesis of new Nano materials and their application in sample preparation in chromatogra翻译这句话时我和同学有较大分歧. “99杯”第十三届全国新概念作文大赛什么时候开赛?什么时候截止? 全国第十二届新概念作文大赛什么时候出入围名单 第十二届新概念作文大赛复赛名单什么时候公布? 政治八年级下册提纲科教版 The factory has 65 percent of the raw materials,the rest of which _____ saved for other purposes.A.is B.are C.was D.were顺便翻译一下 ^o^ 65 percent of the raw materials的谓语数是单数还是复数? 还有one65 percent of the raw materials的谓语数是单数还是复数?还有one third of the country 呢? The output of the factory reduced by twenty percent.请翻译 我会采纳,1题,急,要过程,给好评 11,12,先答对给好评,答—个也行, _______ a reply,he decided to write again.A.Not receiving B.Receiving not C.Not having received D.Having not received 英语18.________ a reply ,he decided to write again.18.________ a reply ,he decided to write again.a.Not receiving b.Receiving not c.Not having received d.Having not received为什么 帮我想个近音英文名我叫悦婷.麻烦各位大哥大姐帮我想个近音的英文名! 置换反应能写出离子化学式吗? Bill Of Material BOM研究目的和意义,和国内外动态有知道的么,有点急,有关它他的资料也行 Bill of Material 的缩写为BOM 缩写怎么读呢?按单词读还是一个一个字母读? BOM表的BOM是什么意思?BOM 的英文全称是什么? bill 英文什么意思? piping bill of material是什么意思 就这一道题, 第一题,答完立马给好评 2.（1）题,如果能把下面的题都答完一定给好评哦 只写1,2就行, （）a reply,he decided to write agin.a.not recieving b.not having recieved c.having not recievedd,not recieved 我认为a和d都对,但正确答案是a,我觉得句子是条件状语从句,省了主谓, 第13届全国新概念作文大赛一等奖获奖名单? 历届新概念作文获奖名单我想要历届新概念获奖名单,如果说全部的太多了，那2007年以前的行吗？ 历届新概念作文大赛一等奖裂解新概念作文大赛一等奖都有谁啊 Computers keep（） of goods in goods in stock ,of raw materials on hand ,and even ofComputers keep（） of goods in goods in stock ,of raw materials on hand ,and even of production process.A company B touch C track Dpace麻烦解释,谢谢 keep track of 最好有例句说明