Ⅲ. Focus on academic achievement and productivity
A. Ⅰ and Ⅱ
B. Ⅰ and Ⅲ
C. Ⅱ and Ⅲ
D. Ⅰ , Ⅱ and Ⅲ
Answer:A
Ⅲ. Focus on academic achievement and productivity
A. Ⅰ and Ⅱ B. Ⅰ and Ⅲ C. Ⅱ and Ⅲ D. Ⅰ , Ⅱ and Ⅲ