Weeds are an index to the character of the soil.
A: obstacle
B: indicator
C: opponent
D: emigration
A: obstacle
B: indicator
C: opponent
D: emigration
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.
- Ploughing mainly has the function of turning over soil, loosening soil and breaking soil. A: 正确 B: 错误
- The arithmetic average index is obtained by weighted average using the individual index of the quantity indicator and the value index of the base period as the weight. ()
- For the liquidity index [img=17x22]17de835df608f46.png[/img], when the [img=17x22]17de835df608f46.png[/img] is between 0-1, the soil is at ____, the greater the value of [img=17x22]17de835df608f46.png[/img], the ____the soil. A: hard state; softer B: hard state;harder C: plastic state; softer D: plastic state;harder