在公钥密码体系中,下列哪个(些)是不可以公开的( )A.公钥 B.公钥和加密算法 发布时间:2017-06-20 08:19 │ 来源:www.tikuol.com 题型:单项选择题 问题: 在公钥密码体系中,下列哪个(些)是不可以公开的( )A.公钥B.公钥和加密算法C.私钥D.私钥和加密算法
题型:单项选择题 His letter, _____ to the wrong number, reached me late. [ ]A. having been addressed B. to have addressed C. to have been addressed D. being addressed 查看答案
题型:单项选择题 关于牙钳使用,下列恰当的是A.钳喙应尽量向根方夹持B.手掌握持时应尽量靠近牙钳关节C.夹持不可太紧,否则易断根D.多个牙拔除时尽量选用万能牙钳E.使用牙钳只能唇(颊)舌(腭)向摇动,否则易断根 查看答案