【简答题】A assist B track C sustain D dismiss
【简答题】The word 'sustain' paragraph 2 could be best replaced by
【简答题】[A] tolerate [B] sustain [C] experience [D] undertake
【简答题】请简述幼儿游戏理论剩余精力说和认知结构论的主要观点。
【判断题】1-2.UTM在一台防火墙上综合了状态监测,入侵检测,URL过滤等功能,向外提供全方位的安全防护服务;
【单选题】The pillars ____ the roof of the house.