电视机等家用电器的开启、关闭及频道转换，可以通过遥控器实现，遥控电视机的光是

A．红光

B．红外线

C．紫光

D．紫外线

汉译英：“清洁证书；验残证书；短缺证书”，正确的翻译为：( )

A．certificate of damage；certificate of shortage；certificate of cleanliness

B．certificate of cleanliness；certificate of damage；certificate of shortage

C．certificate of shortage；certificate of cleanliness；certificate of damage

D．certificate Of cleanliness；certificate Of damage；certificate Of shortage