问题
单项选择题
建筑物按耐火等级分类，耐火性能最好的等级是（）级。
A.一
B.四
C.甲
D.丙
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
建筑物按耐火等级分类，耐火性能最好的等级是（）级。
A.一
B.四
C.甲
D.丙
参考答案：A
| 从方框中选择合适的句子补全下列对话，使对话完整、通顺。 | |
| |
| A: Hi, Tony. (1) ________ B: There are five - my mum, my dad, my two sisters and me. A: (2) ________ B: Yes, our family is big. A: (3) ________ B: Yes. My mother has a brother and my father has two sisters. A: (4) ________ B: Yes, that’s right. How about you, Tim? A: (5) ________ There are only three people in my family - my father, mother and me. |