在被子植物中作为重要分类依据的是[ ]
A.根、茎、叶
B.花、果实、种子
C.花、叶、种子
D.花、果实、叶
B
When the plane landed, the girl could hardly wait _____ her parents. [ ]
A. to see
B. of seeing
C. see
D. seeing
数控机床直角坐标轴的判定步骤是()。
A.X-Y-Z
B.Y-Z-X
C.Z-Y-X
D.Z-X-Y