=1。 ZBXCYA D、E、F分别为?ABC的三边BC、CA、AB的点，?角元赛瓦（Ceva定理）：三条线段AD、BE、CF 交于点M，则 sin?BAMsin?
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比如使用特赛瓦抗癌药（Tarceva），一个月的花费大概是3500美元，但就因为它被证实可以延长患者12天的生命而被批准为胰腺癌的治疗用药。
The drug Tarceva, which costs about $3, 500 a month, was approved as a treatment for pancreatic cancer because it improved survival by 12 days.
其实这不是乌修仁第一次品尝到胜利的喜悦。 早在2000年，他就和同胞卡尔.施瓦泽在世界青少年冠军赛中配对取得第一名。
It was not long before the future British Open champion started tasting success after teaming up with compatriot Charl Schwartzel to win his first title at the World Junior Team Championships in 2000.
在周三向湄公河委员会（MRC）提交的报告中，老挝称其需要在北部赛耶武里省建筑一座1.26亿瓦的水电站以创造外汇收入。
In a submission to the Mekong river commission (MRC) on Wednesday, Laos said it wants to build a 1.26GW-hydropower plant at Sayabouly in northern Laos to generate foreign exchange income.
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