【简答题】___________ a. 全神贯注的,专注的
【简答题】To learn a foreign language well, you need to spend a lot of time on it. The ___ 46 ___ time you spend on the language, the faster you will learn. This does not ___ 47 ___ sitting in class looking out...
【简答题】PC目前大多使用DIMM形式的DDR2或DDR3内存条,其中DIMM的中文名称是______式内存条模块。
【单选题】在三相交流异步电动机缺一相的情况下,下列说法正确的是()