【简答题】Churchill accepted the gift. He ____ the painting ____ “a remarkable example of modern art”, which drew loud laughter.
【简答题】汇出行在汇入行设有清算账户时,汇入行可根据授权在解付汇款后______对方账户。
【单选题】According to the passage, the corpuscular theory of light ______.
A.
was never accepted by the Royal Society
B.
was finally accepted by Hooke and Huygens
C.
was the most popular during the eighteenth century
D.
was rejected by Hooke and Huygens but accepted for the next hundred yeas
【判断题】一旦计算机感染了病毒,即使用防病毒程序检测到它,如果不进行计算机的全部扫描,也不可能做到完全无毒。
【单选题】下面关于网络信息安全的一些叙述中,不正确的是
A.
网络环境下的信息系统比单机系统复杂,信息安全问题比单机更加难以得到保障
B.
电子邮件是个人之间的通信手段,有私密性,不使用软盘,—般不会传染计算机病毒
C.
防火墙是保障单位内部网络不受外部攻击的有效措施之一
D.
网络安全的核心是操作系统的安全性,它涉及信息在存储和处理状态下的保护问题