问题 选择题

影响我国夏季降水的主要因素是(  )

A.夏季风

B.冬季风

C.东北风

D.西北风

答案

夏季风的影响是导致我国降水时空分配不均的主要原因,受季风影响,我国东部地区降水主要集中在 夏秋季节.年降水量空间分布的总趋势是从 东南沿海向 西北内陆递减.

故选:A.

材料题

读下列材料:

“忆昔开元全盛日,小邑犹藏万家室。 稻米流脂粟米白,公私仓廪俱丰实。”一一杜甫

(1)上述材料反映了唐朝哪一时期的繁荣景象?

                                                                                                                                                             

(2)为什么引文中称“开元全盛日”?

                                                                                                                                                             

(3)为何会在“开元”时进入全盛时期?

                                                                                                                                                             

                                                                                                                                                             

                                                                                                                                                             

单项选择题