第18题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. In a library. B. In a bank. C. In a supermarket. D. In a grocery store. 参考答案:A 答案解析:[听力原文]
M: Sorry, these books are ten days overdue. You’ve got to pay forty cents.
W: I am terribly
第19题: [单项选择]下图双代号网络计划的关键路线为( )。 A. 1→8 B. 1→2→6→8 C. 1→3→7→8 D. 1→4→5--→7→8 参考答案:D