噪声对人体的危害性？
参考答案：
1、影响休息；
2、对听觉器官的损伤；
3、引起心血管系统病症；
4、能导致神经衰弱。
The boy has been _____ his parents for years because they are both disabled. [ ]
A. taking after
B. taking pride in
C. taking care of
D. taking an interest in
常见的手部感染致病菌多为____________。
