| 考研易错题(2019/3/6) |
| 第1题:简述夸美纽斯的教育适应自然原则。 |
| 【分析题】: |
第2题:设 ,而中间变量u满足关系式 ,其中u(x,y)和f(u)均为可微函数,如果 ,则u(x,y)=______. |
| 【分析题】: |
第3题:![]() |
| 【分析题】: |
| 第4题: 人类社会有史以来存在的两种类型的经济形式是 ( ) A.自然经济和商品经济 B.计划经济和市场经济 C.商品经济与产品经济 D.商品经济与市场经济 |
| 【单选题】: |
| 第5题:The writer does not believe that______.
A.an asteroid is larger than a meteorite B.material from space, upon hitting the earth, was eventually distributed C.the earth, at one time, had craters D.oceans were formerly craters |
| 【单选题】: |