有机物质装载( organic matter loading )
举一反三
- High energy environment are not conducive to the _______ of organic matter in muds.
- Through exposure to air, water, and organic matter, rocks _____ changes known as weathering.
- 有机物是存在于有机体内的物质，而汽油不能存在于有机体内，因而不是有机物。
- 证明有机物质装载是一个主动过程的证据有对被装载物质有、 需要供应、具有效应
- The organic matter content of farmland in China is decreasing from southeast to ( ) . A: southwest B: northwest C: northeast D: north