A:发菜、颤藻、念珠藻、蓝球藻都属于蓝藻
B:蓝藻与细菌都属于原核生物
C:蓝藻的叶绿体含藻蓝素和叶绿素
D:蓝藻可以通过光合作用制造有机物
Chinese chess has a history of more than 2, 000 years. Today it still interests _______ the young _______ the old.
《西江月》描写山乡夜晚骤雨将至的诗句是:____,____。
满足(n2﹣n﹣1)n+2=1的整数n有几个( )
函数fx=cos2x-12的最小正周期为( )