糖酵解的最终产物是
A．乳酸
B．丙酮酸
C．NADPH+H+
D．核糖
E．二氧化碳
参考答案：A
下列方法中能除去溶液中不溶性固体杂质的是[ ]
A．蒸馏
B．加热
C．过滤
D．吸附
— What's this in English?
— It's _____ English book. _____ book is Mary's.[ ]
A. a, The
B. an, A
C. an, The
