问题
单项选择题
唾液中分泌型IgA主要来源于
A.腮腺
B.颌下腺
C.颊腺
D.腭腺
E.唇腺
答案
参考答案:E
唾液中分泌型IgA主要来源于
A.腮腺
B.颌下腺
C.颊腺
D.腭腺
E.唇腺
参考答案:E
选择适当的句子补全对话。 | |
Tony: Hi! My name's Tony. 1. ______? John: My name's John. Tony: 2. ______! John: Nice to meet you, too! Tony: 3. ______ ? John: Yes, I do. Tony: Do you have a basketball? John: 4. ______ I have a soccer ball. Tony: Let' s play soccer together! John: 5. ______. Let's go!
|