稀硝酸装置短期停车，锅炉系统应保温保压，（）继续运行。
A.锅炉给水泵
B.锅炉补充水泵
C.锅炉循环水泵
D.工艺水泵
参考答案：C
Some of the doctors are paid almost ______ as the nurses. [ ]
A. twice as much
B. much as twice
C. as much twice
D. as twice much
被誉为“欧洲最漂亮的客厅”是( )。
A．安农齐阿广场B．罗马市政广场C．圣马可广场D．佛罗伦萨主教堂
