绩教考评方法的对比分析可以从()等方面进行。
A.经济性
B.可行性
C.规范性
D.功能性
E.有效性
参考答案:B, C, E
—_____?
—She is cooking. [ ]
A. How is it going
B. How is she doing
C. What is she doing
D. What does she do
G3520C燃气发动机采用了闭式冷却水循环系统。()