汽油中四乙铅含量测定试验

大学英语听力第四册 TEST

Test PART A 1. M: When shall we start our work, Jane? W: At 9. But we must hurry for we have to finish everything before 3 in the afternoon. Q : For how long will they work? 2. W: Would you like to hear the latest jazZ record? M: Sure, it has one of

发表于:2018-12-17 / 阅读(58) / 评论(0)

大学英语听力第四册

白领英语晨读-011 To Attract Police　吸引警察

One Police stops on police vehicle outside one Victoria's Bar. After the preparation, as necessary arrests?, this liquor drive slightly mixes. Suddenly he sees to have a young people shakely goes out from bar, spend the many figures only then finds

发表于:2019-01-17 / 阅读(33) / 评论(0)

白领英语晨读

Man drinks gasoline for 42 years

BEIJING, July 13 (Xinhuanet) -- Gasoline powers vehicles all around the world, but a sick Chinese man has been drinking the sticky liquid for 42 years under the illusion that it can relieve his physical pain. Chen Dejun, 71, lives by himself in shabb

发表于:2019-01-31 / 阅读(79) / 评论(0)

英语新闻

Iran starts exporting gasoline: official

TEHRAN, Sept. 28 (Xinhua) -- Iran has started exporting gasoline（汽油）, an official was quoted by the local satellite Press TV as saying on Tuesday. The first shipment of Iran's gasoline has been exported（出口）, Ali Asghar Arshi, manager

发表于:2019-01-31 / 阅读(66) / 评论(0)

英语新闻

万物简史第226期:把铅撵出去(15)

Absurdly, he was excluded from a 1971 National Research Council panel appointed to investigate the dangers of atmospheric lead poisoning even though he was by now unquestionably the leading expert on atmospheric lead. 荒唐的是，一个美国研究委

发表于:2019-02-17 / 阅读(38) / 评论(0)

万物简史

万物简史第212期:把铅撵出去(1)

10 Getting The Lead Out 第十章把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(70) / 评论(0)

万物简史

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学英语单词

adorated

Aimaco

assessorial

autoregressive model (ar model)