关于RSA算法的描述，错误的是（）。A、是一种非对称公开密钥密码_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

关于RSA算法的描述，错误的是（）。

A、是一种非对称公开密钥密码体制

B、加密和解密使用的是相同的密钥

C、用公钥极难得到私钥

D、是密码学领域最重要的基石

答案

参考答案：B

完形填空

For a few years, I have been wearing a ring on my right hand. It’s not always the   16  ring, but it’s always a ring that has 17 on it so that when I look at it, I’m   18  or reminded of something important. I have made a 19 of buying rings like this whenever I see one in a store. Sometimes I give them away as   20 to someone like Jennie.
I first met Jennie in the   21  waiting room and we had talked several times. One night I sat down beside her and   22  how her son was doing because I knew that he was in very 23   condition. She told me that she didn’t know what to do any more because it seemed none of the   24 from the doctors was good. They weren’t at all sure her son was going to   25  the accident that had hurt him so badly. With 26 in her eyes she said, “They’re   27 my hope.”
I knew then that it was 28 just a coincidence that I was wearing the ring that I had on that day. As she   29 to talk, I   30 slipped the ring off my finger and placed it in Jennie’s hand. I told her to wear it to remember that God loved her and He would be with her 31  all of this.   32 Jennie looked down at the ring, she got excited and then held it tightly, 33  the word written on the ring was “HOPE”.
The last day I was at the hospital, I saw Jennie in the distance as I got on the lift. She   34 and held up the hand with the ring on it as she called out to me saying, “Look, I   35  have Hope!”

C．instructions

B．bringing down

C．cutting off

D．taking away

B．rather than

单项选择题

可以测量脊柱活动范围的方法是（）

A.长臂量角器测量

B.短臂量角器测量

C.半圆形量角器测量

D.测量指尖与地面距离

E.圆规测量