Ploughing mainly has the function of turning over soil, loosening soil and breaking soil.
A: 正确
B: 错误
A: 正确
B: 错误
举一反三
- Ploughing mainly has the function of turning over soil, loosening soil and breaking soil.
- Ploughing mainly has the function of turning over soil, loosening soil and breaking soil. A: 正确 B: 错误
- Soil fertility is soil productivity, which refers to the ability of soil to produce plant products.
- Soil radiation is the only source of soil heat.
- The role of trees is to______. A: loose soil B: keep soil in position C: harden soil D: Both A and B