第26题: [单项选择]计算z的值,当x大于y时,z=x;否则z=y。下列语句错误的是 A. If x>=y Then z=x:z=y B. If x>=y Then z=x Else z=y C. z=y:If x>=y Then z=x D. If x<=y Then z=y Else z=x 参考答案:A 答案解析:解析:选项A)中的语句行有两条语句,执行If语句后,执行z=y语句,所以不管x是否大于y,最终x的值都等于y。
第38题: [填空题]Questions 16-20 Choose the correct letter, A, B or C.Which materials can be borrowed for one week only A. some reference books B. CD-ROMs C. children’s DVDs 参考答案:C 答案解析:[Distraction] A: Reference books can only be borrowed for ’one day’; B: CD-ROMs can be borr