题目

下列实验所采取的措施，不涉及“降低化学反应活化能”原理的是（ ） A . 利用果胶酶提高水果的出汁率 B . 滴加肝脏研磨液促进过氧化氢的分解 C . 滴加FeCl3溶液提高过氧化氢的分解速率 D . 利用水浴加热提高胡萝卜的萃取效率 答案：D– – That’s a good idea.A.Would you mind repairing the computer for me?B.What kind of book do you like best, Catherine?C.I’m afraid the homework is too difficult for me.D.I think we should raise some money for charity.