教员需要确保学员熟知完成训练课程所要求的时间，是因为哪种原因？ Instructor should ensure that trainee kown the class hour, because __.
A.学员需要向公司报告训练时间 the trainee should report to his company the training time
B.学员因此可以做工作计划 the trainee can design work plan
C.教员需要管理业余时间 the instructor can manage their spare time
正确答案是B