题目

1896年的某天，苏州一家日本工厂内机器轰鸣。出现这种现象的原因在于签订了 A.《南京条约》    B.《北京条约》     C.《马关条约》     D.《辛丑条约》 答案：CTo the parents’ worry, some middle school students are ______ computer games and completely forget their studies. A. crazy about    B. fond of     C. concerned for       D. serious about