动物的眼睛有以下哪种构造?()
A.瞳孔
B.眼白
C.视网膜
D.眼睑
参考答案:A, C, D
---Hello, Golden Bay Resort,Can I help you ?
--- Do you have a room _______ for this weekend?
A.available.
B.useful
C. possible
D.empty
君士坦丁赠礼