A. 32×106bit/s B. 32×107bit/s C. 107bit/s D. 3200bit/s 参考答案:B
第9题: [单项选择]Finding the police's coming, all the thieves ran away ______ all directions. A. on B. in C. from D. to 参考答案:B 答案解析:[精解] 介词搭配题。direction方向,构成短语:in the direction of…朝……方向;in all directions朝四面八方。例如:Tom went off in one