问题 单项选择题

作物的播种期,气温的稳定通过是很重要的一个考虑因素,如玉米的播种期要求当地气温稳定通过10~12℃,以下对于当地气温稳定通过10~12℃的说法,正确的是()

A、只要当地有一天温度达到10~12℃就叫稳定通过

B、连续一周当地温度在10~12℃以上,才叫稳定通过

C、当地气温连续三天平均气温在10~12℃以上,就叫稳定通过

D、当地气温连续三天最高气温在10~12℃以上,才叫稳定通过

答案

参考答案:C

观察下图,请回答:

①图中人物是谁?

                                                                                                                                                             

②与他有关的成语是什么?

                                                                                                                                                             

③他与谁争霸? 

                                                                                                                                                             

④最后结果怎样?

                                                                                                                                                             

                                                                                                                                                             

⑤我们从他的身上得到什么启示?

                                                                                                                                                             

                                                                                                                                                             

单项选择题 案例分析题