真菌比细菌结构复杂。某同学认为复杂之处在于真菌[ ]
A.细胞有细胞壁、细胞膜、细胞质
B.细胞内含有叶绿体
C.细胞内有成形的细胞核
D.都由多细胞构成
答案:C
|a|+|b|+|c|-|a+b|+|b-c|-|c-a|=a+b+c. (1) a、b、c在数轴上的位置如图4-3
(2) a、b、c在数轴上的位置如图4-4
—Could you tell me_______?.
—Sure. Walk along this road ,you can find it on your left. There you’ll see many old things.
A.how I can get to the post office
B.where is the aquarium
C.if where is a museum near here
D.where I can get a dictionary