在双色调模式中双色调曲线的作用是什么（）
A
暂无解析
Rulesandregulations
所有国家都在争夺供应不足的能源。
Ourhopeistoestablishmutuallybeneficialtradingrelationsbetweenus.
Ifyoucanfillourorderof5000tiesverysoonwe‘dliketoplacetheorderwithyounow.
Theorderissourgentlyrequiredthatwemustaskyoutomaketheearliestpossibleshipment.