问题详情

According to Dr. Pazel.the academic oerformance of a student will be affected__________. 查看材料

A.if he or she is not motivated

B.if he or she is troubled by disordered sleep

C.if he or she is a morning type

D.if he or she is a lazy person

请帮忙给出正确答案和分析，谢谢！