第9题: [单项选择]I got a new battery for my recorder only last week, but it seems to have ______ already. A. worn out B. run down C. knocked off D. gone off 参考答案:B 答案解析:[解析] 本句是说我上周刚给收音机买了一块新电池，但现在电似乎已经用完了。run down意为“用完”，符合句意。其他三项“wear out穿破，用坏，疲劳；knock off撞倒，敲掉；go off
第20题: [单项选择]胎怯的关键病机是（） A. 脾肾两虚 B. 肺肾两虚 C. 肝肾不足 D. 肺脾两虚 E. 五脏不足 参考答案:A
第21题: [单项选择]Sometimes children have trouble ________ fact from fiction and may believe that such things actually exist. A. to separate B. separating C. for separating D. of separating 参考答案:B 答案解析:本题考查固定搭配。have trouble (in) doing sth．“做某事有困难”。句意为：有时孩子们在分清故事和现实方面会有困难，相信故事中的事确实存在。
