澙湖
参考答案：
被沙坝从毗邻海域隔离出来，仍与海洋沟通或有限沟通的浅水域。
--- Have you ever been to Tibet?
--- Yes. I ____________ there three times in the year 2008.
A．went
B．have gone
C．have been
D．had been
观察存在着主观的成分，“纯客观”的观察是不存在的。
