题目

第三部分  阅读理解（共20小题；每小题1分，满分20分） 阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。 A I travel a lot, and I find out different “styles”(风格) of directions every time I ask “How can I get to the post office?” Foreign tourists are often confused(困惑) in Japan because most streets there don’t have names; in Japan, people use landmarks(地标) in their directions instead of street names. For example, the Japanese will say to travelers, “Go straight down to 若实数x，y满足|x﹣y|+（y﹣2）2=0，则xy的值为（    ）．