Wearing seat-belts when driving is now______by law.

A．compulsive

B．forcible

C．compulsory

D．involuntary

治疗中除主穴外睾丸肿痛者加用（）

A．大椎、商阳

B．大敦、厉兑

C．太冲、曲泉

D．内庭、太冲