第30题: [单项选择]The problem has _______ simply because you didn't follow the instructions in the hand book. A. assembled B. arisen C. risen D. resulted 参考答案:B 答案解析:[解析] 近形近义题。所填词为不及物动词,并可以和problem搭配,[B]arisen“出现”可作为不及物动词,符合句意,所以[B]为答案。[A]assembled“集合,聚集”其主语通常为复数名词