A:a﹣真核生物、b﹣植物、c﹣肺炎双球菌
B:a﹣真核生物、b﹣真菌、c﹣蓝藻
C:a﹣原核生物、b﹣细菌、c﹣流感病毒
D:a﹣原核生物、b﹣细菌、c﹣大肠杆菌
— Sure. But remember we can learn nothing well _______ hard work.
They are _______ little sheep that we can't make much money by selling _______.
某化学小组用一定量 和 的混合溶液进行了如图实验,已知溶液甲呈蓝色.