能有效的阻断冷（热）桥问题的出现的是（）
A.外墙内保温
B.外墙外保温
C.外墙内外保温
D.以上都不能
参考答案：B
― You know who came yesterday?
― Yao Ming? We had a basketball match.
― _____ He came and watched the game. [ ]
A. You guessed it!
B. How did you know that?
C. Well done!
D. That was good news!
住宅楼及其配套设施是一个( )。
A．项目 B．产品 C．作业 D．目标
