题型:判断题 There is _______ wrong with him. He just needs a good rest. [ ]A. nothing B. something C. everything D. anything 查看答案
题型:判断题 下面关于随机取存储器(RAM)的叙述中,正确的是______。A.RAM分静态RAM(SRAM)和动态RAM(DRAM)两大类B.SRAM的集成度比DRAM高C.DRAM的存取速度比SRAM快D.DRAM中存储的数据无须“刷新” 查看答案