Which of the following is the feature shared by the English phonemes /m/ and /p/?
考查英语音素。根据英语辅音的分类可知，按照声带振动与否，/m/是浊 辅音，/p/是清辅音；按照发音部位，二者都是双唇音；按照发音方式，/m/是鼻音，/p/是塞音。/m/ 和/p/共同的特征是双唇音，故选 C。