（HIGH SPEED-10 MBit/s LOGIC GATE OPTOCOUPLERS）什么意思啊?

（HIGH SPEED-10 MBit/s LOGIC GATE OPTOCOUPLERS）什么意思啊? High-speed high-speed Internet high speed data card high-speed internet connection是什么? with a high speed 还是at a high speed?China has developed -- such a high speed. at high speed 和with great speed 有什么区别? AT FULL SPEED和at high speed的区别. USB2.0中的full speed 和high speed是怎么回事? 10Mbit是等于多少bit?是1024还是1000? 什么是mbit? speed可以用high修饰吗 速度快是at a high speed 还是at the high speed at high speed 还是at a high speed,教材上是前一种两者区别是什么? at high/fast speedat high speed or at fast speed,要不要加a Could you tell me _____- Certanily.In half an hour.A.when will the high speed train arriveB.when the high speed train will arriveC.when would the high speed train arriveD.when the high speed train would arrive “青威高速”英文如何拼写?是不是QingWei high speed? what a high speed he is runing at