民用建筑分（）两大部分。A．生活建筑和公共建筑 B．居住建筑和公共建筑 C．居住建筑

请在II 栏中找出与I 栏格句子相对应的答语

I                                               II

小题1:What do you think of your English teacher ?   A  That sounds good.

小题2:How was your weekend?                         B  They’re 10 RMB.

小题3:Can I help you ?                              C  He is a policeman.

小题4:What does your father do ?                   D  She is nice and I like her.

小题5:Why do you like koalas?                      E  Yes, there is.

小题6:Thank you very much.                          F  A medium bowl.

小题7:Is there a post office near here?             G  It was great!

小题8:How much are the dumplings?                  H  Because they are cute.

小题9:What size bowl of noodles would he like?      I  You’re welcome.

小题10:Let’s go to the zoo!                       J  I’d like some dumplings, please.

下泌 * * 感染的治疗首选（）

A.氨苄西林

B.复方磺胺甲噁唑

C.庆大霉素

D.头孢曲松钠

E.头孢噻肟钠

已知某管道煤气的主要成分是H₂和CO，天然气的主要成分是CH₄，它们燃烧的热化学方程式为

2H₂(g)+O₂(g)=2H₂O(l) △H=-571. 6kJ/mol

2CO(g)+O₂(g)=2CO₂(g) △H=-566.0kJ/mol

CH₄(g)+2O₂(g)=CO₂(g)+2H₂O(l) △H=-890. 31kJ/mol

当使用管道煤气的用户改用天然气后，在相同条件下燃烧等体积的可燃气体，理论上所获得的热量，后者大约是前者的多少倍 [ ]

A．0.8

B．1.3

C．1.6

D．3.1

（）开关基本上不适于作为变压器出口保护器。

A、DW10

B、DW15

C、DZ10

D、D215

常用封隔器K344-115其中K代表（）、115代表封隔器外径。