小杉将调查的生物进行分类：鲫鱼、金鱼、螃蟹、苍蝇、老鼠等归为一类，荷花，玫瑰花，松树，黄金叶归为一类．小杉分类的方法是（）A．按照生物的形态结构B．按照生物的用途C．按照生-七年级生物

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• The best way __________ the work is tostart at once.[ ]A. finishB. to finishC. finishingD. finishes-
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