参考答案:but that it’s beyond his ability/but that it’s beyond his capability 答案解析:[解析] 本题考查对beyond一词用法的掌握。介词beyond意为“超出…”，与一些名词连用，可以构成一些固定短语，含有否定意义。除本句中的beyond his ability/capability
第29题: [单项选择]Prof Flynn found no students in the lecture hall when he arrived. Only then did he realize that he came _______ early. A. too much B. much too C. so much D. much so 参考答案:B 答案解析:much too是个副词短语，用以修饰形容词或副词；而too much是个形容词短语，用以修饰名词。
第30题: [单项选择]某二叉树共有60个叶子结点与50个度为1的结点，则该二叉树中的总结点数为 ( )。 A. 148 B. 169 C. 182 D. 198 参考答案:B 答案解析:[解析] 叶子结点总是比度为2的结点多一个。所以，具有60个叶子结点的二叉树有 59个度为2的结点。总结点数=60个叶子结点+59个度为2的结点+50个度为1的结点= 169个结点。
