室内燃气工程验收合格后，接通燃气应由（）负责。 ["工程单位","施工单位","承包商","燃气供应单位"]
所谓可行即（）。 ["给对方一扇门","给双方一扇门","给对方一扇窗","给双方一扇窗"]
在“设置图片格式”对话框中，显示了几种环绕方式（）。 ["4","5","6","7"]
燃具应采用符合国家现行标准并经国家主管部门认可的（）检测合格的产品。 ["检测机构","检测仪","肥皂水","U型压力计"]
Which of the following modes of heat transfer does NOT require any physical contact between a warmer and a cooler substance?（） ["Radiation","Conduction","Natural convection","All of the above"]
国家公务员在整理、修饰仪容时的原则是什么？
