A:But for; should have reached
B:Because of; would have reached
C:During the period of; we would reach
D:In spite of; we should have reached
从生物进化的大致过程(进化系统树)来看,地球上现存的动、植物中,最高等的动物和植物依次是( )
小明将少量的白糖放在铁锅里加热,先看到白粮融化,接着看到融化的物质呈现棕色,最后有黑色残渣,请你判断整个实验属于( )
如图所示,小华用刻度尺测量某铁棒的长度,该刻度尺的分度值是____ ,测量的结果应为____ cm.