[化] 对数生长期

麻省理工学院公开课：单变量微积分06：指数与对数函数导数、对数微分法

分集介绍：指数,log,对数微分;双曲函数 Exponential.and.log.Logarithmic.differentiation;.hyperbolic.functions

发表于:2019-01-05 / 阅读(335) / 评论(0)

Business US Central Bank Holds Interest Rates Steady

Business US Central Bank Holds Interest Rates Steady Barry Wood The United States central bank, the Federal Reserve , Wednesday announced that it is holding short-term interest rates steady. The usual

发表于:2019-01-06 / 阅读(35) / 评论(0)

VOA2004（上）--各类新闻

学个词Learn a Word 第1367期　phase out

今天我们要学的词是phase out。 Phase out, 是逐步结束的意思。世界上最年轻的国家南苏丹独立后宣布，学校教育将逐步淘汰阿拉伯语，改用英语教学。 The government of South Sudan announced it will phase

发表于:2019-02-05 / 阅读(72) / 评论(0)

英语单词荟萃

Tunisia qualifies for final phase of African Nations Cup

TUNIS, Oct. 8 (Xinhua) -- Tunisia qualified for the final phase of the 2012 African Nations Football Cup after beating Togo 2-0 on Saturday at the Rades Olympic stadium near Tunis. The Carthage Eagles took the lead with goals by Walid Hichri in the 1

发表于:2019-02-05 / 阅读(65) / 评论(0)

英语新闻

IMF: World Economy Entering 'Dangerous New Phase'

The International Monetary Fund says the U.S. economy is struggling to overcome sluggish growth due to an unresolved government debt crisis and weaknesses in the housing market and household finances. In a report released Tuesday, the IMF downgraded

发表于:2019-02-05 / 阅读(56) / 评论(0)

英语新闻

IMF's Lagarde: Global Economy in 'Dangerous Phase'

The head of the International Monetary Fund says the global economy has entered a dangerous phase in which advanced economies risk slipping into a new recession that also would hurt developing nations. IMF Managing Director Christine Lagarde said Thu

发表于:2019-02-18 / 阅读(32) / 评论(0)

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abderhalden's cancer serum

charge controlled reaction