题目

  Long ago，in a small village of Wakefield lived two farmers，Harry and Peter．Harry was very hard．working while Peter was  36  ．Every day Harry got up early and came home late，but Peter walked around for fun．   One summer there was no   37  and the crops(庄稼)were dying．Harry thought，“I must do something to save these crops，or they shall die．”With this  38  in mind，he went out to find a river so that he could dig a canal(沟渠)to his field．He walked on and on, feeling tired and thirsty．After a  39  search，he found a river full of blue water下列反应中，属于加成反应的是（　　） A、油脂与氢氧化钠溶液反应B、甲烷与氯气反应生成一氯甲烷C、乙烯与氯化氢反应生成氯乙烷D、蔗糖水解生成葡萄糖