Dermatophagoides farinae is one of the main pathogenic mites causing human acariasis.粉尘螨是人体螨病的主要病原螨之一.The purpose of the study is to characterise 101 cases of pulmonary acariasis patients.本文总结了101例肺螨病患者的临床表现、胸部X线 特征及用甲硝达...
注意r跟随的各种元音的发音.Note the various sounds of vowels followed by r.下面是一些有时被称做短元音的词.The following are sometimes called short vowels.注意should和must中快速发音时元音的发音.Note the use of the vowel sound in should and must when they are pron...