题目

右图是根据生物的相似点进行分类的，实线框和虚线框分别代表两种分类法。下列选项中不是此图分类依据的是 A．有无线粒体                   B．有无叶绿体 C．有无细胞壁                   D．有无染色体 答案：BThat he left without a word ________ all the people present at the birthday party last Wednesday evening．A.astonishingB.astonishedC.astonishD.astonishes