单选题 Which of the following consonant clusters may not serve as the beginning of a word?
【正确答案】 D
【答案解析】解析:考查音系学里面的序列规则。如果一个词汇3个辅音连在一起在词首的话,应该满足第一个发音是/s/,第2个是/p/or/t/or/k/,第3个是/l/or/r/or/w/,D选项违反了此规则,故选D。