不挂科搜题免费

问题:

/s/ and /θ/ can be distinguished by __________.

答案:

B考查辅音的分类。按照发音方式(manner of articulation),/s/和/θ/均属于擦音;按照发音部位( place of articulation),/s/是齿龈音,/θ/是齿间音;二者都是清辅音且都送气,故选B。