探伤仪接收电路中一般不需要前置放大电路，只需要电子选通开关、公共主放大器、检波电路和视放电路。

Though he doesn't achieve his goals, he is not a failure. _____, he is remembered as a true hero.[ ]

A. In particular

B. On the contrary

C. Generally speaking

D. To be honest