产业“家底”更加厚实。粮食产量连续两年稳定在1.4万亿斤以上，制造业增加值连续16年稳居世界首位，工业增加值对经济增长的贡献率升至35%，服务业增加值占国内生产总值（GDP）的比重增至57.7%。
There is a special form for boolean formulas called "Conjunctive Normal Form" (CNF). A problem in this form consists of clauses connected with and operators, where each clause only contains variables connected with or operators. The variables can appear negated, but only variables can be directly negated, something like !(a && b) is not allowed. An example boolean formula in CNF form is:
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The Basics and What We Expect from WebPKI
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（一）船舶共同海损牺牲的金额，按照实际支付的合理修理费，减除合理的以新换旧的扣减额计算。船舶尚未修理的，按照牺牲造成的合理贬值计算，但是不得超过估计的修理费。