明示条款是由双方以口头或书面形式规定的条款，旨在构成合同的一部分。当事人在谈判过程中实际使用的口头用语，可以作为确定合同某些明示条款的证据。（德尔雅·西瓦） Producer surplus is the world from the equilibrium issue and down until finally it hits the horizontal axis. Here is the surplus of what the producers have been prepared to offer the product for and what they are offering it for. ... http://cruzwlzjv.slypage.com/14452301/5-easy-facts-about-代写assignment-described