题目

卵原细胞是经过下列哪种方式形成的（ ） A . 无丝分裂 B . 基因重组 C . 减数分裂 D . 有丝分裂 答案：DThe young man came riding full speed down the road on his bicycle._________ it was!A．How dangerous the sceneB．What dangerous a sceneC．How a dangerous sceneD．What a dangerous scene