选词填空。

    What was I like when I was young? My mom said l was lovely．I was____in everything．I liked oil____．I liked riding a horse．I liked____a cow．I liked helping____vegetables on the farm．I also liked shopping．At the supermarket I didn't buy____cheap．I was only interested in expensive things．Haha，I was a funny boy when I was young，wasn't I ?

下列内容不属于细菌菌落特征的是（   ）。

已知a∈R，则“a＞2”是“a²＞2a”成立的（　　）