A:在用蒸馏水洗涤烧杯时,洗液未全部注入容量瓶中
B:用量筒量取浓硫酸时,俯视刻度线
C:用来配制溶液的容量瓶用蒸馏水洗涤后未进行干燥处理
D:定容时俯视刻度线
与坎儿井水利工程密切相关的农业生产方式是( )
— Waiter, I'd like a hot wing hamburger and corn salad.
— Sorry, sir. They ________ only for lunch and dinner. Why not consider ________ something else?