洗毛
参考答案：
利用化学和机械的方法，除去羊毛纤维上的土杂、脂汗和污垢等杂质，使羊毛洁净、松散、柔软、弹性好。
—There are 60 students in my class and 44 of them use weibo veryoften.
—44? That means about_______of your classmates are weibo users, right?
A．half
B．one third
C．two thirds
D．three quarters
党参的气味为
A．有特殊香气，味微甜B．气香特异，味微苦C．气微，味微苦而涩D．气微，味微甜而后苦涩E．气微，味微苦而酸
