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【判断题】
有向图G=(V，E)，其中V={a，b，c，d}，E={a，ba，d，b，c，c，d}，则图G为强连通图。()A.
正确
B.
错误
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【单选题】With the college entrance examination near, both the parents and the students are more and more anxious.
A.
draws
B.
drawn
C.
drawing
D.
is drawing
【单选题】消化道出血所致的黑便与饮食所致的黑便最重要的别区在于
A.
前者无光泽，后者有光泽
B.
前者有光泽，后者无光泽
C.
前者粪便隐血试验阴性，后者粪便隐血试验阳性
D.
前者粪便隐血试验阳性，后者粪便隐血试验阴性
E.
前者粪便隐血试验阳性，后者粪便隐血试验阳性
【单选题】关于安全协议,下列说法错误的是( )。
A.
安全协议又称为密码协议
B.
一个人可以通过执行一系列的步骤来完成一项任务构成协议
C.
重复攻击产生的原因是在协议设计中对消息的新鲜性没有充分考虑
D.
在公钥协议中，数字证书可离线担保实体确实是公钥的所有者
【简答题】2-2 应变片产生温度误差的原因及减小或补偿温度误差的方法是什么?
【单选题】Both the number and the percentage of people in the United States involved in nonagricultural pursuit expanded rapidly during the half century following the Civil War, with some of the most dramatic i...
A.
New technological developments had little effect on farmers
B.
The percentage of the total population working in agriculture declined
C.
Many farms destroyed in the war were rebuilt after the war
D.
Farmers achieved new, prosperity because of better rural transportation
【简答题】In both China and the West, at this time of the year, we must endure the cold, the wind and the snow of wintertime. How good it is then that we have festivals to keep our spirits up and hearts warm! S...
【简答题】A．The sausage was made from the meat of the dachshund. B．Both the frankfurter and the dachshund came from Germany. C．The dachshund had a body similar to the frankfurter. D．Both B and C.
【单选题】______ all the relatives and friends of both the bride and the groom are invited to the wedding is a common practice in China.
A.
What
B.
Whether
C.
That
D.
How
【简答题】试述金属应变片产生温度误差的原因及减小或补偿温度误差的方法是什么？
【单选题】下列关于物联网节点的说法错误的是
A.
攻击者通过某些漏洞，可以获取传感节点中的机密信息
B.
攻击者通过某些漏洞，可以修改传感节点中的程序代码
C.
攻击者通过某些漏洞，可以获取监听传感器网络中传输的信息
D.
物联网节点被攻击无所谓，不会产生损失
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