单词：automatic gas chromatograph
单词：automatic gas chromatograph 相关文章
O: are you ready for your first driving lesson? S: yes. Which one is the brake again? O: the pedal on your left is the brake and the one on your right is the gas. S: Im glad this car is an automatic. I don't like having to change gears. O: automatics
生活英语情景口语
Quarter in a payphone Drying laundry on the line Watching sun tea in the window Pocket watch, tellin' time Seems like only yesterday, I'd get a blank cassette Record the country countdown, 'cause I couldn't buy it yet If we drove all the way to Dalla
格莱美获奖歌曲
Broadcast: Feb 13, 2003 Demand for electricity is growing in Mexico, but the state-owned oil company, known as Pemex, is reducing the amount of natural gas it can provide for electrical generation. Th
VOA2003（上）-国际时讯
This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr
Scientific American(八)月
今天我们要学的词是 automatic。Automatic 自动的。semi-automatic rifle 半自动步枪。If the Congress doesn't take action soon, automatic spending cuts will take effect on March 1st. 如果国会不马上采取行动的话，政府削减
英语单词荟萃
Listen to the dialogues and fill in T for True, F for False. 英语对话1 A: Do you know what kind of petrol this car is using? B: No idea. This car is rented! A: Gee. You should ring for an enquiry. 英语对话2 A: Have you ever been to TRJ gas st
英语听力练习题