（二）业务之间具有明显的主附关系。主要业务居于主体地位，体现交易的实质和目的；附属业务是主要业务的必要补充，并以主要业务的发生为前提。
'type': 'object',，这一点在旺商聊官方下载中也有详细论述
Laura Ullrich, director of economic research at Indeed, said in her view another reason hiring appetites took a hit last year was the uncertainty stemming from the Trump administration's cuts to government spending and his programme of tariffs.，这一点在同城约会中也有详细论述
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