A filter that attenuates high frequencies while passing low frequencies is called a（ ）. A: bandpass B: bandstop C: lowpass D: highpass

A clever bit of artistry, instead of lengthening the distance between us______and the exalted artist, ______it.（） A: plebeians… widens B: laymen … attenuates C: dilettantes … repeals D: knaves… estimates E: critics … advertises