— Are the ants eating bread?

— ______________________.[ ]

A. Yes, we are

B. Yes, they are

C. Yes, you are

下列玻璃仪器的洗涤方法正确的是（　　）

A．做银镜反应后的试管用氨水洗涤

B．做碘升华实验后的烧杯用酒精洗涤

C．盛装苯酚后的试管用盐酸洗涤

D．附着油脂的试管用热碱溶液洗涤