题目

短文改错 （共10小题，每小题1分，满分10分）     Are the years you spent at school best years of your life?             Personally , I found most lesson rather uninteresting. We had to                  sit at our desks in silence and paid attention to what the teachers                      were saying. They were used to write on the blackboard and ask                      us difficult questions. We also had to do piles of homework , and                     hand it on time. We had to we通过对金属和金属材料的学习，你认为下列做法正确的是A．用铁制容器来配制波尔多液B．要制取2 g氢气，用56 g生铁与足量的稀硫酸反应C．将裸露的铁管埋在潮湿的土里D．不锈钢的抗腐蚀性好，可用于制造医疗器械