阅读短文，然后根据其内容从A、B、C、D中选出最佳选项。

Mr Li: Sam, did you enjoy your first Spring Festival in China?

Sam: Yes, I did. During this festival, many family members get together.

Mr Li: Yes. I hear that at Thanksgiving Americans also get together for a special meal. It sounds similar.

Sam: Yes. It's similar. During these holidays, both the Chinese and Americans come home and have a big dinner. It's great fun.

Mr Li: What do you think are the main differences between the Spring Festival and Thanksgiving?

Sam: Well, we take part in different activities and eat different kinds of food. In China, people usually set off fireworks and eat dumplings. In the US, we usually watch a Thanksgiving parade and an American football game on TV. We also eat turkey.

Mr Li: That's interesting.

枸杞耐寒和抗旱能力强，强阳光树种，无光不结果。下图为我国宁夏枸杞生产分布图。该区域枸杞生产持续发展的说法，不正确的是（    ）

猜谜语。

大丈夫不得出头。

谜底：____

大湖效应是指冷空气遇到大面积未结冰的水面（通常是湖泊），从中得到水蒸气和热能，然后在向风的湖岸形成降水的现象。受大湖效应影响，2014年美国部分地区遭受罕见的暴风雪。图（a）为某次暴风雪形成过程示意图。图（b）为某区域地图。读图，图（a）中（   ）