第1题: [单项选择]The economy in this region has been stagnant for a long time and no signs of recovery have ______ till now. A. shown up B. kept up C. picked up D. made for 参考答案:A 答案解析:(show up露出,显出)。句意为:长期以来,该地区的经济十分萧条,经济复苏的迹象尚未显露出来。D.keep up维持;C.pick up无师自通地学会(语言);D.make for有利于。