A:①②
B:①④
C:③④
D:②④
一对双胞胎(同卵生)的兄弟俩因工作环境不同,肤色相差很大,其变异是( )
1995年起,城镇中低收入的职工能以成本价买到合适的住房。这是因为我国实施了( )
补全短文。
Hello! My name is Alice. I have a happy family.There are three people in my____.They are my father,my mother and I.We all do____at home.My father can cook the____.My mother can wash the____and clean the bedroom.I can empty the trash and____the flowers.I can set the table,too.