1,3- 丙二醇( PDO )是生产 PTT 的主要原料,但 PDO 价格昂贵,阻碍了 PTT 的应用扩展,所以 PDO 的工业化生产成为 PTT 生产的关键。目前, PTT 的生产方法主要有两种:丙烯醛路线与环氧乙烷法。 根据以上材料回答下列问题: ( 1 )写出环氧乙烷法的反应步骤? ( 2 )试阐述环氧乙烷法合成 PDO 的一步法与两步法合成工艺? ( 3 )试分析环氧乙烷合成 PDO 工艺存在的问题及关键?
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【单选题】A win-win negotiation is a successful compromise in which both sides improve their situation through mutual cooperation. The key is for one party to offer the other party something that they will perc...
A.
Although Tony could have become angry about the original offer of $ 12, 000, he made a counteroffer.
B.
Effective negotiation helps you to resolve situations where what you want conflicts with what someone else wants.
C.
After the terms have been agreed upon, it is much more likely that the relationship will continue to develop with a view to cooperating with each other to insure the continuing success of both parties.
D.
The company was very pleased with their return on investment, and Tony was able to launch his own game design company.
E.
This, in turn, provides an incentive for the other side to make a similar offer.
F.
When the company reviewed his counteroffer, they conceded that he should receive a share and offered slightly less than Tony had proposed. (46)