在建设工程施工图实施过程中,遇有特殊情况,执行强制性规范有困难时,经原设计单位批准,可以变更、或局部执行强制性规范。
1、正确错误
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Themanageriscallingona______customertryingtotalkhimintosigningthecontract.
设函数y=sinx^2+2x,求dy.
heteachertoldthemsincelight________(travel)fasterthansound,lightning________(appear)togobeforethunder.
设f(x,y)具有一阶偏导数,且对任意的(x,y),
Themorewelookedatthepicture,________.