【简答题】根系有两种类型,直根系由主根发育而来,须根系由侧根组成。( )
【简答题】____disease (移植物抗宿主病)
【判断题】根系有两种类型,直根系由主根发育而来,须根系由侧根所组成。()
【简答题】Divide text A into 4 parts: Part 1 Paragraph _____ to _______ Part 2 Paragraph _____ to _______ Part 3 Paragraph _____ to _______ Part 4 Paragraph _____ to _______