检修封隔器时对损伤的零部件要及时()。
A.更换
B.修复
C.先修复不能修复的更换
D.继续使用
参考答案:D
--- She should not have done that sort of thing.
---Whatever she did was reasonable, _____ what you had done. Besides, it’s none of your business.
A.compared with
B.comparing to
C.compare to
D.comparing with
简述教师的观察力特征。