可促进葡萄球菌肠毒素形成的营养成分是()
A.水分
B.维生素
C.淀粉
D.矿物质
E.脂肪
参考答案:C
固定化酶和固定化细胞在实际应用中的显著特点是什么?
—Would you mind repairing the MP3 player for me?
— ______.[ ]
A. Never mind
B. Don't worry
C. Not at all
D. I'm glad you like it