单词：Snellen notation
单词：Snellen notation 相关文章
vocabulary 10000 第七部分 Lesson 19 The soldiers lay in ambush, waiting for the signal to open fire. The major ambushed his troops in the woods on both sides of the road. He is always bragging about what he can do with a car. Be sure that you clea
刘毅词汇 10000
OK, today we're going to talk about the mole. 今天我们来谈一下摩尔。 Now, I know what you're thinking: I know what a mole is, 我知道你现在在想：我知道摩尔是什么， it's a small furry creature that digs holes in the ground
TED演讲教育篇
It's called U-Carmen e-Khayelitsha literally Carmen of Khayelitsha. 这个电影叫U-Carmen e-Khayelitsha就是卡雅利沙的卡门。 I want to play you a tiny clip of it now for no other reason than to give you proof positive 我给各位演奏一小
TED演讲娱乐篇
Because chemists for so long worked in isolation, conventions were slow to emerge. Until well into the second half of the century, the formula H2O2 might mean water to one chemist but hydrogen peroxide to another. C2H4 could signify ethylene or marsh
万物简史
Listen to the interview and fill in T for True, F for False. 英语对话 A:At what age did you start to play the piano? B:lt's about my preschool age. A:Is it about 2 t0 3 years old? B:No, I think, it's about the age of 5. A:Could you read music not
英语听力练习题
Buying a designer handbag is a huge investment, and no-one wants to splash the cash only to find its actually a fake. But as the market for luxury carryalls has grown - so has the market for knock-offs. 购买奢侈品牌包包可谓是下血本的买卖
趣味英语