题型:问答题 31. Researchers now have some proofs ______ reading the Roman alphabets and Chinese characters uses different parts of brain. where B. when C. which D. that 查看答案
题型:问答题 SDH信号最基本的模块信号STM-1速率为155.520Mbps。STM-4的速率为______。A.600.080 MbpsB.622.080 MbpsC.466.560 MbpsD.155.520 Mbps 查看答案