培训效果评估途径包括（）
A.学员与管理者的反馈
B.现场的应用能力的观察
C.测试结果的分析
D.绩效的改善
参考答案：A, B, C, D
—What do you usually do _____ weekdays after school?
—I usually read books.
A. in B. at C. on
His grandfather is over 85, ______ he is very healthy. [ ]
A. and
B. but
C. or
D. so
