影响H+有效传质系数的因素分析
参考答案:(1)酸液浓度影响:浓度增高,有效传质系数增高
(2)温度影响:随温度升高而增加。
(3)同离子效应影响(4)酸液流态
An investor notices that one Australian dollar is selling for $0. 67 in U. S. dollars. A put option with an exercise price of $0.75 is selling for $0.14. An investor takes a long position in a protective put. What is the value of the position at expiration and what is the profit if the price of one Australian dollar at expiration is $ 0.70 Value at expiratory Protective put profit()①A. $ 0.75 -$ 0.06 ②B. $ 0.75 $ 0.08 ③C. $ 0.61 $ 0.08
A. ①
B. ②
C. ③
Apache服务器是()。
A.DNS服务器
B.Web服务器
C.FTP服务器
D.Sendmail服务器