冷战结束后,欧洲并没有获得一劳永逸的安全与稳定,中东欧地区冲突不断,成为流血的伤口。欧盟的软弱无能在波黑问题上暴露无遗,最终仍然需要美国的介入。这说明冷战结束后()。 ["欧洲各国呈现衰落的迹象","美国成为世界上唯一超级大国","欧洲一体化程度亟待提高","美欧关系在全球化进程中加强"]
信用卡诈骗罪是指() 。 ["伪造信用卡","变造信用卡","恶意透支","冒用他人的信用卡"]
A Cisco Catalyst switch can belong to how many VTP domains? () [" 1"," 2"," 1 to 1,005"," 1 to 4,096"," no limit"]
C220型号的OLT的mac默认老化时间是() ["60s","120s","200s","300"]
在以下混凝土的外加剂中,能显著提高混凝土抗渗性和抗冻性的外加剂是()。 ["早强剂","速凝剂","引气剂","减水剂"]
基于因特网的网络教学