下图为某学者绘制的20世纪90年代世界五大力量基本框架图，其中：美、欧、日是基础；美、俄、日是关键；美、欧、俄是欧洲一翼；美、日、中是亚洲一翼。可见，该学者认为

上海复旦大学学生顾某，毕业时主动放弃“白领”工作回到农村，结合所学知识和当地农业特点，通过网络销售农产品，生意越做越红火。读该地循环农业生产模式图(下图)，该生产模式的农产品深受消费者青睐，主要是因为(    )

请回答下列问题：

阅读理解:阅读下列短文，然后从每题所给的四个选项(A、B、 C、和D)中，选出最佳选项。

Chinese writer Mo Yan won the Nobel Prize in Literature in 2012.Mo,who was born in 1955 into a farmer's family in Gaomi County in Shandong Province, is the first Chinese national to win the Nobel Prize in Literature. In his early years, life was not easy and he experienced hunger. These things have influenced Mo Yan’s later writings.

60-­year­-old Park Geun­hye(朴槿惠)was elected the new President of South Korean in December, 2012. She becomes the country's first female head of state and her term will last five years from 2013. “I will become a president who puts people’s living before anything else.” She told the cheering people in central Seoul as the accepted her win. “I will keep my promises.”

Barack Obama (bom in Honolulu, Hawaii in 1961), who was elected the 44^th President of the United States in 2008, has been elected again to a second term, fighting against Republican Challenger Mitt Romney. Obama is a graduate of Columbia University and Harvard I aw school. His father was from Kenya. And his mother was born in Wichita, Kansas.