二尖瓣狭窄的杂音听诊特点不包括
A、杂音最响部位在心尖区B
暂无解析
OneofthedisadvantagesintheGrammar-TranslationMethodisthatthetextsaretakenfrom_____,thelanguageofwhichdoesn'toftenmeetthepracticalneedsofthelearners.
Importswillbeallowedinproportion_______exports.
WhichofthefollowingisNOTemphasizedbytraditionallinguists?
名词解释：copyright
AfterI_________aletterItookhertoa__________________.
