属于咀嚼粘膜的是
A．唇粘膜B．颊粘膜C．软腭粘膜D．硬腭粘膜E．口底粘膜
参考答案：D
- A nice shirt! A present?
- Yes, it is. My aunt ＿＿＿＿＿＿ it to me for my last birthday.
A．was sending
B．had sent
C．will send
D．sent
Kerberos
