As early as his second film, Chaplin had developed his own manner of acting, the one that ________

world famous. [ ]

A. would become  

B. became

C. was to become  

D. had become

有空心或半透明圆形的薄膜，纵剖面薄膜呈梯状排列（）

A．川木通横切面

B．大血藤横切面

C．鸡血藤横断面

D．通草断面

E．钩藤断面