反复性过劳损伤的主要症状是()
A.情绪痛苦
B.抑郁
C.疲乏
D.臂或手痛
E.腰背痛
参考答案:D
The boy will _______ crazy if you do not allow him to use the computer.[ ]
A. prove
B. fall
C. go
D. grow