第10题: [单项选择]搬运公司给一家工厂搬运2000箱玻璃,合同规定完好地运到一箱给5元运费,如果损坏一箱,不但不给运费,还得赔40元。最后搬运公司共拿到9190元,请问一共损坏了多少箱玻璃 A. 17 B. 18 C. 19 D. 20 参考答案:B 答案解析:[解析] 典型的“鸡兔同笼”问题,或者说是得失问题,损坏一箱将损失40+5=45元,因此损坏了 (5×2000-9190)÷(40+5)=18箱。直接用代入法也容易得出B是正确答案。
第26题: [单项选择]As the conversation begins, what are the man and woman doing A. Looking at some photographs. B. Selling cameras. C. Teaching a photography class D. Repairing camera equipment. 参考答案:A 答案解析:[听力原文]4-7
M: Did you take these pictures They’re very good.
W: Yes, I think they tamed out well,