No matter whether business negotiation is conducted orally or by way of writing, transaction is considered concluded once an offer or a counter鄄offer is accepted. That is to say, a legitimate contract can be either in writer or oral form. In business practice, however, a written contract is generally prepared and signed as the proof of the agreement and as the basis for its execution.
【正确答案】：不管业务协商是以书面还是口头进行,一且发盘或还盘被接受便认为是达成了交易。也就是说,合法的合同既可以是书面的也可以是口头的。然而，在业务实践中,通常要制作并签署一个书面合同作为达成协议的凭证和执行该协议的基础。
