单词：leather chemists association
单词：leather chemists association 相关文章
Now is it just me, or are chemists getting increasingly nosey? It's ever since the government suggested that we consult chemists for minor 1)ailments rather than troubling our doctors, who are all far
疯狂英语2001年
[00:03.80]第十一部分 看外科医生 [00:07.60]1.My hand(elbow,neck, foot,side,arm,wrist) hurts. [00:24.33]我的手(胳膊肘,脖子,脚,身体侧面,胳臂,手腕)疼. [00:41.06]2.My legs(hands, shoulders, feet,ankles,knees, muscles)hurt. [01:00.89]我的腿(手,肩膀,脚,脚脖
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This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor
Scientific American(九)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. They say you should take the bitter with the sweet. But if you're not a big fan of bitter, chemists have just the loophole for you. Oh, you'll still have
Scientific American(四)月
For most of us, the periodic table is a thing of beauty in the abstract, but for chemists it established an immediate orderliness and clarity that can hardly be overstated. Without a doubt, the Periodic Table of the Chemical Elements is the most eleg
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