—Are you going to Mary’s birthday party?

—     .I might have something else to do.

A．Thank you

B．Sounds great

C．It depends

D．Don’t mention it

药材加水浸泡后，用扩大镜观察，可见透明状黏液层的是（）

A.木瓜

B.肉豆蔻

C.葶苈子

D.连翘

E.砂仁