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【单选题】
在课堂教学中,教师是课堂教学活动的(),学生则是课堂教学活动的主体。他们是按照主体与主导之间的不断错位滑移来实现相互作用的。A.
主导
B.
主体
C.
主人
D.
旁观者
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【单选题】《新时代爱国主义教育实施纲要》中指出,( )是中华民族的民族心、民族魂,是中国人民和中华民族维护民族独立和民族尊严的强大精神动力。
A.
爱国主义
B.
集体主义
C.
民族主义
D.
个人主义
【简答题】Consider an application that transmits data at a steady rate (for example, the sender generates an N-bit unit of data every k time units, where k is small and fixed). Also, when such an application st...
【单选题】27 In a circuit-switched network, if each link has n circuits, for each link used by the end-to-end connection, the connection gets ( ) of the link’s bandwidth for the duration of the connection.
A.
a fraction 1/n
B.
all
C.
1/2
D.
n times
【单选题】For circuit-switched, which of the following is not true?
A.
used by traditional telecommunication network
B.
during the process of telephoning, the whole circuit cannot be used by other calling
C.
the entire information need be divided into small packets
D.
during the process of telephoning, if any section doesn’t work, the connection must be built again
【单选题】Circuit-switching technology is used in Publish Switched Telephone Network(PSTN), Global System for Mobile Communications(GSM) and code Division Multiple Access (CMDA) .It is a ( ) information transfe...
A.
connection oriented
B.
connectionless
C.
high bandwidth utilization
D.
poor real-time
【判断题】3 Consider an application that transmits data at a steady rate, and once this application starts, it will stay on for a relatively long period of time. According to the characteristic, a packet-switch...
A.
正确
B.
错误
【简答题】爱国主义是中华民族的民族心、民族魂,是中华民族最重要的(),是中国人民和中华民族维护民族独立和()的强大精神动力。
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