在数字证书申请发放到作废的过程中，PKI（Public Ke Infrastruct

流行性脑脊膜炎的病理变化和并发症。

7.35×3.2+2.65×3.2=（7.35+2.65）×3.2应用了乘法分配律．______．

面试官从应聘者的某一优缺点邮购发去评价应聘者的其他方面，这种偏见属于（）

A.首因印象

B.对比效应

C.晕轮效应

D.录用压力

In some cities , workaholism（废寝忘食工作）is so common that people don’t consider it unusual . They accept the lifestyle as      36     . Government workers in Washington , D. C. , 37      , frequently work sixty to seventy hours a week . They don’t do this because they have to ; they do it because they       38    to . Workaholism can be a     39     problem . Because true workaholics would rather work than do anything else , they      40     have no idea of how to relax ; that is , they might not     41      movies , sports , or other types of entertainment . Most of all , they     42      to sit and do nothing . The lives of workaholics are usually stressful , and this tension（紧张）and worry can cause      43     problems such as heart attacks and stomach diseases .     44     , typical workaholics don’t pay much attention to their families . Their marriages may end in      45     as they spend little time with their families .

Is workaholism      46     dangerous ? Perhaps not . There are , certainly , people who work      47     under stress . Some studies show that many workaholics have great energy and interest in work . They feel     48      is so pleasurable that they are actually very happy . For most workaholics , work and entertainment are the same thing . Their jobs      49     them with a challenge ; this keeps them busy and creative .

50     do workaholics enjoy their jobs so much ? There are several      51     to work . Of course , it provides people with paychecks , and this is important . But it offers     52      financial security . It provides people with self-confidence（自信心）; they have a feeling of satisfaction       53    they have produced a challenging piece of work and are able to say “I      54     it” . Psychologists （心理学家）claim that their work gives people an identity （自身价值）. After they take part in work , they     55     a sense of self and individualism .

36．A．strange                  B．boring                   C．pleasant                 D．normal

37．A．for example           B．on the other hand    C．what’s more           D．after all

38．A．agree                     B．promise                 C．dare                       D．want

39．A．slight                     B．serious                   C．obvious                  D．difficult

40．A．still                        B．probably                C．certainly                D．mostly

41．A．afford                    B．enjoy                     C．watch                    D．allow

42．A．dream                    B．decide                    C．intend                    D．hate

43．A．physical                 B．cultural                  C．social                     D．mental

44．A．Therefore               B．However                C．Anyway                 D．Besides

45．A．happiness               B．silence                   C．failure                   D．surprise

46．A．sometimes              B．always                   C．seldom                   D．hardly

47．A．sadly                     B．differently              C．efficiently              D．slowly

48．A．study                     B．family                   C．life                        D．work

49．A．equip                     B．pack                      C．provide                  D．fill

50．A．When                    B．Why                      C．How                      D．Where

51．A．factors                   B．advantages             C．steps                      D．ways

52．A．no more                 B．more or less            C．no more than          D．more than

53．A．when                     B．before                    C．unless                    D．until

54．A．valued                   B．failed                     C．caught                   D．made

55．A．give                             B．lose                       C．get                        D．need

三极生态系统的形成在（）

A.中生代

B.新生代

C.寒武纪

D.前寒武纪