题目

日本工业集中分布在如图中所示地区，主要是因为该地区（ ）①城市和人口集中，是国内最大的消费地②港口条件优越，巨型船舶可以停靠③原料、燃料主要依靠进口，产品主要出口④环境污染较少 A . ①② B . ①③ C . ②③ D . ②④ 答案：C Mary failed the driving test again．If she ______ harder, she ______ the test easily．        A．practiced; would pass                  B．had practiced; would pass        C．had practiced; would have passed   D．should practice; should have passed