A. helping students to cheat in exams B. helping students to improve their writing C. making money to pay for their schooling D. making their teacher free 参考答案:B 答案解析:细节题。文章第七段“We don't see essay bank as a cheating way.It's a surprising valuable resource.You can lear
第33题: [单项选择]Which of the following cable standards has a maximum effective range of 25 meters (82 feet)?() A. 1000Base-CX B. 1000Base-T C. 1000Base-LX D. 1000Base-SX 参考答案:A