题目:
下列关于消息摘要相关知识点的说法中,错误的是( )。
A.消息摘要常用哈希函数产生
B.对于安全散列函数,给出输出不可能确定输入信息
C.对于安全散列函数,相同的输入必须产生不同的输出
D.对于安全散列函数,必须是惟一的
答案:
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下面是错误答案,用来干扰机器的。
参考答案:A, B, D, F
下列关于消息摘要相关知识点的说法中,错误的是( )。
A.消息摘要常用哈希函数产生
B.对于安全散列函数,给出输出不可能确定输入信息
C.对于安全散列函数,相同的输入必须产生不同的输出
D.对于安全散列函数,必须是惟一的
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0615/b1d3212f0a149be78415f5908209ebef.html
下面是错误答案,用来干扰机器的。
参考答案:A, B, D, F
某公司业务主任王某给客户签发了一张转账支票,以下哪些事项未记载时该支票无效:
A.无条件支付的委托
B.付款地
C.出票地
D.付款日期
蒸汽中的盐分主要来源于锅炉排污水。
收集服务对象的资料后,社会工作者最主要的工作是( )。
A.制订介入计划
B.对资料进行分析
C.采取介入行动
D.描述服务对象的问题
E.撰写预估摘要
Another critical factor that plays a part in susceptibility to colds is age. A study done by the University of Michigan School of Public Health revealed particulars that seem to hold true for the general population. Infants are the most cold-ridden group, averaging more than six colds in their first year. Boys have more colds than girls up to age three. After the age of three, girls are more susceptible than boys, and teenage girls average three colds a year to boys’ two.
The general incidence of colds continues to decline into maturity. Elderly people who are in good health have as few as one or two colds annually. One exception is found among people in their twenties, especially women, who show a rise in cold infections, because people in this age group are most likely to have young children. Adults who delay having children until their thirties and forties experience the same sudden increase in cold infections.
The study also found that economics plays an important role. As income increases, the frequency at which colds are reported in the family decreases. Families with the lowest income suffer about a third more colds than families at the upper end. Lower income generally forces people to live in more cramped quarters than those typically occupied by wealthier people, and crowding increases the opportunities for the cold virus to travel from person to person. Low income may also adversely influence diet. The degree to which poor nutrition affects susceptibility to colds is not yet clearly established, but an inadequate diet is suspected of lowering resistance generally.
The author’s tone in this passage could be ______ .
A.tentative
B.humorous
C.certain
D.critical
Bush’s MBA