第2题: [单项选择]要向已有数据的c：/test/test.txt文件添加数据，正确的文件打开命令是（）。 A. Open〞c：/test/test.txt〞ForAppendAs#512 B. Open〞c：/test/test.txt〞ForAppendAs#511 C. Open〞c：/test/test.txt〞ForOutputAs#511 D. Open〞c：/test/test.txt〞ForOutputAs#512 参考答案:B
第22题: [单项选择]My new shoes cost me 50 yuan (RMB). The price was ______ that the last pair I bought a month ago. A. two time more than B. twice as much as C. as twice D. as much as twice 参考答案:B 答案解析:表倍数的同级比较，用B项中的词序。
