大家在查： 6—7% 3千5百亿世间万物滤尘 RichardAbrams Monterrico Barboza Thetechnology 9千1百亿 ribonucleotides

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Their two-way trade is roaring: only $270 m in 1990 , it is expected to exceed $60 billion this year.

China : $1. 16tn, Japan : $0. 91tn, UK : $0. 35tn