... 权重 0．5 0．3 0．2 地区A 3 5 2 3．4 地区B 4 4 3 3．8 地区C 2 3 4 2．7 4冷热国法 冷热国法是美国学者利特维克（Litvak）和班廷（Banting）在1968年提出来的。
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... 名字: Litvak 姓: Elana 标签: Elana Litvak ...
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Alex Litvak 利特维克 ; 里瓦克 ; 编剧
Anatole Litvak 安纳托尔·李维克 ; 导演 ; 安纳度里华
Sanford Litvak 利脱瓦克
Elana Litvak 标签
John Litvak 利特法克
Jeffrey Litvak 标签
Litvak set aside 2 operating rooms just for urgent cases, leaving 18 open for scheduled procedures.
FORBES: Special Surgery
Anderson called in Eugene Litvak, a 57-year-old Boston University operations management expert who'd studied telecommunications in his native Russia.
"It is easier for practically every hospital to predict when somebody will break their leg than when someone will schedule surgery, " says Litvak.
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