第14题: [单项选择]The technology supplied by Motorola is based on ______. A. Bluetooth features B. MP3 audio capability C. Global Positioning System D. GPRS standard 参考答案:D 答案解析:根据第二段第二句话“Motorola said it will begin offering the technology based on the next-generation GPRS (Glo
第22题: [单项选择]Who is wanted on the phone A. At home. B. At school. C. In the shop. 参考答案:C 答案解析:[听力原文] F: What about this yellow shirt M: It’s nice and cheaper. I’ll take it.
第34题: [单项选择]咖啡因的化学名为 A. 3,7-二氢-3,7-二甲基-1H-嘌呤-2,6-二酮 B. 3,7-二氢-1,3-二甲基-1H-嘌呤-2,6-二酮 C. 3,7-二氢-1,3,7-三甲基-1H-嘌呤-2,6-二酮 D. 3,7-二氢-1,7-二甲基-1H-嘌呤-2,6-二酮 E. 3,7-二氢-1,4,7-三甲基-1H-嘌呤-2,6-二酮 参考答案:C