试题 试卷
题型:单选题 题类:常考题 难易度:普通
广西壮族自治区南宁市2018-2019学年高一下学期生物期末考试试卷
①2mL淀粉溶液+2mL唾液,37℃,5min
②2mL淀粉溶液+2mL清水,37℃,5min
③2mL淀粉溶液+2mL稀释唾液,37℃,5min
④2mL淀粉溶液+2mL唾液,95℃,5min
⑤2mL淀粉溶液+2mL唾液+3滴盐酸,37℃,5min.
试题篮