【单选题】关于经济效果评价的方法,下列说法正确的是( )。
【单选题】The author suggests that students should practice reading .
A.
when they find suitable books
B.
as much as they can in their own time
C.
when they are not very busy
D.
if they are not discouraged by the reading material
【简答题】If one has the desire to improve his reading speed, the motivation to practice and, he may improve his reading speed.
【单选题】关于经济效果评价的方法,下列说法正确的是()。
【单选题】在对投资方案进行经济效果评价时,应______。
【单选题】What reading aloud to practice pronunciation? [ ]