单词:dihydroxypropyltheophylline
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A couple of years ago when I was attending the TED Conference in Long Beach, 几年前我参加在长滩TED会议的时候, I met Harriet. 我遇到了哈里特。 We'd actually met online before not the way you're thinking. 实际上我们以前在网
分集介绍:指数,log,对数微分;双曲函数 Exponential.and.log.Logarithmic.differentiation;.hyperbolic.functions
美国众议院无条件通过债务上限法案 WASHINGTON, Feb. 11 (Xinhua)-- U.S. House of Representatives on Tuesday approved a bill with no provisions attached to extend the limit on the federal government's borrowing authority. The legislation,
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两场选举之后 乌克兰未来阴云密布 After the recent completion of elections in Ukraine there was hope the conflict in the east would ease, but that has not happened. Military convoys from Russia are flowing into rebel-controlled areas aga
BEIJING, Feb. 5 (Xinhua) -- China on Tuesday unveiled reform guidelines on income distribution amid growing public concerns over a widening wealth gap. The guidelines encourage further work to improve the initial distribution system and stepped-up ef