立波同学利用暑假赴埃及旅游，并拍摄了一幅埃及开罗（东二区）附近的景观照片，拍照时间为20时15分（北京时间）。据此完成下列问题。
形成该地表形态的主要外力作用是（）
A.物理风化
B.风力侵蚀
C.流水搬运
D.流水沉积（堆积）
参考答案：B
解析：
该地以热带沙漠气候为主，气候干旱，降水稀少，但地势很平坦，受风的作用很大，流水的搬运和沉积作用都是错误的，从上图可以看出，离地面近的地方受影响更大，所以是受风力的侵蚀作用，故选B。
考点：本题考查埃及开罗的有关知识。
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