【单选题】亚里士多德观点中的至高而广涵善指的是 ( )。
【简答题】(p1wu?北京)在△ABC中,a=u,b=p 6 ,∠B=p∠A. (Ⅰ)求cosA的值; (Ⅱ)求c的值.
【简答题】岩石和矿物在有很多应用,请你写出应用的例子。
【判断题】页岩可渗透性不强,这使得页岩气流量较小;而最近发展的水力压裂技术可以有效增加页岩的断裂构造,从而提高页岩气的产量。
【单选题】P rofessor Wu told us that by the end of the year he _______ here for 3 years.
B.
will have been working
D.
would have been working
【单选题】Professor Wu told us that by the end of the year he______here for three years.
B.
will have been working
C.
would have been working