题目内容
rock-bottom price ------ 最高价格
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meet each other halfway ------ 各让一步
call off the deal ------ 达成交易
A negotiation is a process of1between parties to manage conflicts in order to2, solve a problem or3. In business field, both parties often hold a negotiation for the4,5,6,7and8of the products. When9clients, remember the following basic10：
对于铰链四杆机构，当满足杆长之和的条件时，若取（ ）为机架，将得到双曲柄机构。A.最长杆
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