The upward movement follows U.S. president-elect Barack Obama's weekend pledge of a large public works plan to stimulate the economy and signs that North American automakers will get at least some of the government aid they've been seeking./ M# k5 B! y4 r( W) ?) r# E
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large public works plan $ k' [4 X3 G0 ~& W; M( v会有多大的意义