常见的生态模型有三种:动态模型、______和最佳模型。
参考答案:灾难模型
—When did your grandfather _____ your grandmother?
—Oh, sixty years ago.[ ]
A. marry
B. marry to
C. marry with
D. get married
新娘妆的底妆要求是()。
A.细腻
B.油腻
C.厚重
D.轻薄