2010年4月14日，在青海省玉树藏族自治州玉树县发生7.1级地震，震中位置大约在33°N、97°E。经纬网中，正确显示震中M所在位置的是（　　）

Kitty is a lovely girl. Today she goes to the city to visit her aunt. There are so many hotels and restaurants in the city. She can't find the way to her aunt's house. She is lost. She wants to cross(穿过)the street. But there are too many buses and cars. She feels afraid. She stops in the middle(中间). A policeman comes and helps her to cross the street. Then he tells(告诉) Kitty how to get to her aunt's house. Kitty says“thank you”and then she gets there safely(安全地). Both(两者都) Kitty and her aunt are happy.

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关于撒哈拉以南非洲的叙述，正确的是（    ）