【简答题】设机器字长为 8 位,则 +50 的原码、反码、补码分别为 __________ 、 __________ 、 __________ ; − 50 的原码、反码、补码分别为 __________ 、 __________ 、 __________ 。
【简答题】The first time when he visited the online chat room was in 1998, when he was only 10 years old.
【单选题】He _____ with an American family when he visited the United States as a visiting scholar.
【判断题】Li Bai wrote two poems when he visited the mountain for the first time.
【单选题】When he visited the house 50 years later,he found everything was _____ it had been before .
【单选题】域名到IP地址的转换通过 实现。CN代表的国家是 。Q
【单选题】以下哪个选项是指作者在文学写作过程中对语言的敏锐感知和精当运用的能力( )。