搜题请搜索小程序“爱下问搜题”
问题 单项选择题

属于安全攻击中的被动攻击的是

A．假冒

B．重放

C．通信量分析

D．拒绝服务

答案

参考答案：C

解析：[命题目的] 考查安全攻击的方案。
[解题要点] 被动攻击包括信息量的泄漏与通信量分析。
[错解分析] A)，B)，D)属于主动安全攻击。
[考点链接] 安全攻击分为主动攻击与被动攻击两类。

单项选择题 共用题干题

患者男，31岁，因“胸痛、气短2h”来诊。体重70kg。诊断为主动脉弓夹层动脉瘤，拟在全麻体外循环下行主动脉弓全弓置换术。患者入手术室后突然自觉胸痛、气短加重，继而意识消失，大动脉搏动消失。

此患者手术期间监测有创动脉血压，比较恰当的穿刺途径是（）。

A.左上肢动脉

B.右上肢动脉

C.左下肢动脉

D.右下肢动脉

E.左上肢动脉＋下肢动脉
查看答案
完形填空

第二节完型填空（共20小题，小题1．5分，满分30分）

阅读下面短文，从短文所给各题的四个选项（A, B, C, D）中选能填入相应空白处的最佳选项。

Dear Doctor,

My husband and I got married in 1965 and for the first ten years of our marriage I was very happy to   36   home and raise our three children．Then four years ago, our youngest   37   went to school and I thought I might go back to   38 ．

My husband was very   39   and helped me to make my decision．He pointed out all of the things I can do around the   40  , and said he thought I could be a great   41   in business．

After several weeks of job-hunting, I found my   42   job, which is working for a small public relations firm．At first, my husband was very   43  of me and would tell his friends, "My clever little wife can   44   that company she's working for．"

But as his joking words were close to   45  , my husband stopped talking to me about my job．I have received several promotions and pay increases, and I am now   46   more money than he is．I can buy my   47   clothes and a new car．Because of our joint incomes, my husband and I can do many things that we had always   48   of doing, but we don't do these things because  he is very   49 ．

We   50   about little things and my husband is very critical of me in front of our friends．For the first time in our marriage, I think there is a possibility that our marriage may come to a（an）   51 ．

I love my husband very much, and I do not want him to   52   lower, but I also love my job．I think I can be a good wife and a working woman, but I don't know   53 ．Can you give me some   54  ? Will I have to choose one or the other or can I keep both my   55   and my new career?

Please help．

"DISTRESSED"

36．A．look                B．stay                        C．see                         D．study

37．A．person                    B．man                       C．child               D．lady

38．A．school                    B．factory                   C．study               D．work

39．A．restricted         B．opposite                  C．disappointed            D．supportive 

40．A．group                     B．house                     C．firm                       D．husband 

41．A．success                   B．failure                    C．mother                   D．helper 

42．A．awkward         B．convenient              C．useful                     D．present

43．A．warm                     B．fond                C．proud                     D．comfortable 

44．A．run                        B．walk                C．hire                        D．sell 

45．A．awareness        B．beliefs               C．reality               D．ambition 

46．A．making                   B．building                  C．producing        D．growing  

47．A．cheap                     B．own                       C．important         D．incredible

48．A．agreed                    B．believed                 C．dreamed                 D．supposed 

49．A．unhappy          B．confident         C．discouraging           D．certain

50．A．communicate   B．strike               C．fight                D．change

51．A．absence                  B．end                        C．exam               D．question 

52．A．gain                B．add                        C．feel                    D．suffer 

53．A．what               B．where                     C．why                   D．how 

54．A．duties                     B．advice                    C．fun                     D．enjoyment

55．A．husband           B．child               C．friendship     D．boss 
查看答案