委中可治疗（）
A.阳痿
B.腰痛
C.痛经
D.痔疾
E.癫痫
参考答案：B
—Henry, you are in a new school. How is it going?
—______. I am good with my teachers and classmates. [ ]
A. Terrible
B. You are welcome
C. Pretty good
D. I am OK
公司安全生产的总体目标是不发生哪些事故有依据？
