试题 试卷
题型:多选题 题类:常考题 难易度:普通
2016-2017学年北京市丰台区高三上学期期末生物试卷
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.
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