— Our vacation cost a lot of money.

— Did it? Well, that doesn't matter ____ you enjoy yourselves. [ ]

A. unless

B. in case

C. as long as

D. so far as

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