Smoking is _____ your health. [ ]
A. good for
B. good at
C. bad for
D. bad at
答案:C
指出下列错误的是
A.白附子善治风痰
B.天南星善治顽痰
C.白芥子善治寒痰
D.瓜蒌善治燥痰
E.昆布善治湿痰
时间价值是金融期权价格的一个组成部分。()