题目

It is a fine day. Pierre is a Frenchman(法国人) and he knows little English. Now he is sitting near the window of a restaurant in London. He hears someone shouting (喊), “Look out!” Then he puts his head out of the window to see what is going on. At this time somebody pours (倒) water over his head.    Pierre gets very angry(生气). Some men sitting around him laugh (笑) and Pierre gets even angrier.    “What are you laughing at?” he says unhappily.    One of the men answers, “You must be from other countries. ‘Look out’ means ‘be careful (小心的)’.”下列四组河流中，河口都位于北纬20°---25°之间的是A．印度河、恒河、红河、西江B．印度河、尼罗河、恒河、西江C．恒河、印度河、长江、西江D．恒河、红河、底格里斯河和幼发拉底河