________ my previous teachers, the senior high teachers are more knowledgeable and have more sense of humor.

A．Comparing to

B．To compare with

C．Comparing with

D．Compared with

当阻垢剂计量箱液位低于（）表示液位的色块会变成红色

A、0.1m；

B、0.2m；

C、0.3m；

D、0.4m；