【单选题】要有天下兴亡、匹夫有责的担当精神就必须要讲求()
【简答题】When he left his parents he promised them that he would ______(尽量多写家信).
【单选题】只从数字上来讲,IPv6地址所拥有的地址容量达到( )。
【单选题】Plato and Confucius believed that physical training was an important part of education.
【判断题】要有天下兴亡、匹夫有责的担当精神,讲求奉献,实干进取。
【单选题】He ____ to come today, but he didn't keep his ____. [ ]