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【单选题】
IP地址是因特网中用来标识子网和主机的重要信息,如果IP地址中主机号部分每一位均为0,该IP地址是指。A.
因特网的主服务器
B.
主机所在子网的服务器
C.
该主机所在子网本身
D.
备用的主机
手机使用
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反馈参考答案：
举一反三
【判断题】The word “Frontier” in the context of the 19th century United States means not just a borderline, but also a war against enemies.()
A.
正确
B.
错误
【简答题】A．The break-down of the United States. B．The withdrawal of some southern states from the Union. C．The creation of the Confederate States of America. D．The defeat of the Confederate States of America a...
【单选题】下列关于本实验的描述中,其中不正确的选项是( )。
A.
为了寻找和确定光功率最小值的位置,可以改变量程,随着光功率的减小,量程应该随之减小
B.
为了减小测量误差,应该让入射光分别通过液体的不同部位进行旋光度的测量
C.
有旋光特性的物质很多,比如水和葡萄糖等
D.
电场强度矢量的变化方式可以根据光功率最小值对应位置的变化方式进行判断。例如,迎着光的传播方向观察,当光功率最小值位置顺时针变化时,则意味着电场强度矢量顺时针变化
【多选题】关于补充医疗保险，下列哪一项描述是错误的（ ）
A.
具有非赢利的性质
B.
自愿参加，双方通过签定保险合同来实现
C.
权利和义务是等价交换的对等关系
D.
权利和义务关系由民法调整
E.
社会福利事业的一种
【单选题】The Gilded Age refers to
A.
the United States in 1820s.
B.
the United States in early 20th century.
C.
the United States in 1950s.
D.
the United States in late 20th century.
【单选题】Throughout the 19th century and into the 20th, citizens of the United States maintained a bias against big cities. Most lived on farms and in small towns and believed cities to be centers of (144) cri...
A.
eruption
B.
corruption
C.
interruption
D.
provocation
【单选题】In the 18th and 19th centuries, universities in western Europe and United States enjoyed increasing academic freedom because of acceptance of the experimental methods of the sciences.
A.
Y
B.
N
C.
NG
【判断题】In the United States，Christmas in most homes begins on the evening of December 24th,()
A.
正确
B.
错误
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