唾液中IgA的主要来源为A.大涎腺 B.舌下腺 C.腮腺 D.小涎腺 E.颌下腺 发布时间:2017-05-27 03:50 │ 来源:www.tikuol.com 题型:单项选择题 问题: 唾液中IgA的主要来源为A.大涎腺B.舌下腺C.腮腺D.小涎腺E.颌下腺
题型:单项选择题 根据句意和首字母提示填入所缺单词。1. Mike is an English boy. He can speak a I_____ Chinese.2. S_____ is the first day of a week.3. Are you in the school s_____?4. I want to know your e-mail a _____.5. You can j_____ many clubs in this summer. 查看答案