用于断路器的手力操作机构也装有脱扣器。
参考答案：错
Though his grandfather was 60 years old, he____a trip around the world. [ ]
A. gave
B. agreed
C. managed
D. existed
使君子的主治病证是（）
A.湿热泻痢
B.血热出血证
C.食积气滞，腹胀便秘
D.蛔虫病
E.疟疾
