WHO规定的青春期为
A.10~13岁
B.13~15岁
C.10~19岁
D.15~20岁
E.≥20岁
参考答案:C
将下列句子变为否定句。
1. He goes to school at 7: 30.
___________________________
2. Lingling has lunch at school.
3. Tom likes swimming.
4. He often watches TV in the evening.
按照房屋完损等级划分,该写字楼属于( )。
A.完好房
B.基本完好房
C.九成新房屋
D.一般损坏房