Photo 2.15

A local woman measures the growth of a corn stalk in a greenhouse in Johnston, Iowa, United States, Feb 9. According to relevant statistics, the state ranks first in corn and soybean production in US. REUTERS/Brian C Frank

一名当地妇女正在一个温室里测量玉米杆的生长情况。据统计，艾奥瓦州的玉米和大豆产量在美国排第一。美国艾奥瓦州，约翰斯顿，2月9日。路透社/Brian C Frank 拍摄

Iowa is well-known for its caucuses. Iowa caucus goers gather at the UNI Dome on the campus of the University of Northern Iowa in Cedar Falls, Iowa, Jan 3. REUTERS/Jeff Haynes

艾奥瓦州以其选民小组会议著名。参加会议的人们聚集在北艾奥瓦大学，美国艾奥瓦州，锡达福尔斯，1月3日。路透社/Brian C Frank 拍摄

Host Feng Xin invites three guests to join her, discussing why Chinese Vice-President Xi Jinping chose to visit Iowa and what Chinese and American people think of each other in Beijing, Feb 7.

主持人冯欣邀请三位嘉宾一起探讨：习近平副主席选择访问艾奥瓦州的目的，以及中美两国民众如何看对方，北京，2月7日。