某小孩缺钙，医生建议该小孩服用钙片的同时，还要服用少量鱼肝油，这是因为鱼肝油中含有丰富的（ ）
A：维生素A
B：维生素B
C：维生素C
D：维生素D
若方程（m2﹣9）x2﹣（m﹣3）x﹣y=0是关于x，y的二元一次方程，则m的值为（ ）
根据句意及汉语提示完成单词
①Miss Gao and her family are____（普通的）people.
②Can you ____（描述）your father's personality?
③He is reading a____ (小说) in the library.
④Yang Mi is a famous____（女演员）.
⑤This____ (茶馆) looks cleaner than that one.
—You're right.They can't be careful while driving.
