题目

组织的形成是由于（） A、细胞分化的结果           B、细胞分裂的结果  C、细胞生长的结果           D、细胞停止生长的结果 答案：A It has been announced by our provincial government that another two medical teams will be sent to ______ the injured people in the severe earthquake. A. join to　 B. join in　 C. take part in　 D. attend