bis-的用法和样例：

例句

Six dimethylsilyl bis -- enol ethers of aldehydes aresynthesized and the yields are good.合成了六个醛的二甲硅基双烯醇醚，产率较高。

词汇搭配

bis peroxide过氧化双
bis ether双醚
bis-diazotized benzidine双偶氮联苯胺, 双重...
bis ethane双乙烷
bis die(拉)一日二次...
bis-azo compound双偶氮化合物...
bis-pentamethylenethiuram tetrasulfide四硫化双五亚甲基秋兰...
bis vanadium双钒

【近义词】

bi-表示“二(倍)...

汪培珽第0阶段预备级Biscui

Sorry,thereisnotexttemporarily,Pleasehelptingroomtolookforit! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thankyou ！

发表于:2018-12-06 / 阅读(553) / 评论(0)

汪培珽 I Can Read 系列

VOA标准英语2009年-Sanha Wins Presidential Vote in Guinea-Bis

Ruling party candidate Malam Bacai Sanha has won Guinea-Bissau's presidential election. It was a vote to replace long-time leader Joao Bernardo Vieira, who was killed by mutinous troops five months ago. Malam Bacai Sanha at a polling station in Biss

发表于:2018-12-08 / 阅读(263) / 评论(0)

VOA标准英语2009年(七月)

2006年VOA标准英语-Bissell Dinner Theater Solves 'Murders' Over Di

By Cheng Xiao Hong and Zhang Songlin St. Louis, Missouri 19 September 2006 watch Bissell Dinner Theatre The Bissell Mansion Restaurant and Dinner Theater in the Midwestern city of St. Louis, Missouri promises visitors the chance to get away with mur

发表于:2019-01-07 / 阅读(336) / 评论(0)

2006年VOA标准英语（九月）

影视歌曲：Jessica Paré-Zou Bisou Bisou

Zou bisou bisou, 快来么么哒 Zou bisou bisou, 快来么么哒 Zou bisou bisou, 快来么么哒 Zou bisou, zou bisou, 快来么么哒呀么么哒 Mon dieu qu'ils sont doux 哎呦喂真是温柔呢 Zou bisou bisou, 快来么么哒 Zou bisou bisou, 快

发表于:2019-01-10 / 阅读(338) / 评论(0)

影视英文歌曲

Bolt to take part in Bislett Games in June

PARIS, Jan. 11 (Xinhua) -- Triple Olympic champion Usain Bolt of Jamaica said on Wednesday that he will compete in the Bislett Games in Oslo on June 7 to prepare for the London Games in August. Bolt, 25, world record holder in the 100 and 200m, surre

发表于:2019-02-03 / 阅读(363) / 评论(0)

英语新闻

Bolt nails 200m win in year's best time at Bislett

OSLO, June 9 (Xinhua) -- Usain Bolt ran the year's fastest time of 19.86 seconds to grab the men's 200m title at the Bislett Games here on Thursday in rainy conditions. Bolt delighted the crowd at Oslo's premiere athletics stadium with his usual pre-

发表于:2019-02-03 / 阅读(254) / 评论(0)

英语新闻

EU bans sale of baby bottles containing Bisphenol A

BRUSSELS, May 31 (Xinhua) -- Baby bottles containing the substance Bisphenol A (BPA) would have to be pulled from the shelves across the European Union (EU) starting from Wednesday, in a milestone move to better protect the health of EU citizens, an

发表于:2019-02-08 / 阅读(259) / 评论(0)

英语新闻

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

acknowledgement guilt

bottom line management

caramel malt