在课堂教学中,学生必须接受学校行政决定被编入一定的班级,具有一定的_________。与课堂教学相比,学生在课外活动中具有更大的_________。
参考答案:强制性 自主性
根据句意及所给首字母提示完成句子。
1. —What w _____ you do if you wanted to make friends with a new student?
—I'd introduce myself.
2. This cake looks d _____ from that one.
3. Don't be w_____ about me. I'm feeling better now.
4. If I w _____ a millionaire, I'd send money to "Animal Helpers " .
5. I hear that you have won m _____ of dollars.
据报道,我国每年因金属腐蚀造成 的损失占国民生产总值(GNP)的4%.请你根据不同原理,提出防止钢铁锈蚀的两条合理措施.