Do you want to know _____ my TV shows? [ ]
A. about
B. on
C. in
D. at
答案:A
小檗碱口服吸收少而缓慢,故擅长于肠胃湿热壅滞所致泻痢()
零部件修理基准的选择条件是什么?举例说明其作用。