Everyone ____ his own hobbies. [ ]
A. have
B. has
C. is having
D. haves
答案：B
对萎缩概念理解正确的是
A．组织或器官内细胞体积减小和数目减少B．发育正常的器官、组织内实质细胞体积减小和数目减少C．组织或器官内间质减少D．萎缩性病变一般不能恢复
睾丸下降
