为保证宴会顺利进行,必须进行安全检查,下列()是安全检查的内容之一。
A、服务员摆台是否规范
B、餐厅的温度
C、餐巾花的选择
D、太平门的标志是否清晰
参考答案:D
After the professor____out the project made a comment on the report, the media focused on it.
A.was opposed to carry
B.opposed to carry
C.opposed to carrying
D.opposed carrying
分别将下列物质ag在氧气中充分燃烧后的气体(1.01×105 Pa,120℃)通入足量的过氧化钠中,充分反应后排出气体,过氧化钠增重bg,若b=a,则该有机物为
A.HCHO
B.CH3COOCH2CH3
C.HOOCCOOH
D.HCOOH