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【单选题】
下列各种连接,均属对点连接的是 。A.
总线式星型结构 交换式星型结构
B.
总线型结构 总线式星型结构
C.
交换式星型结构 网状结构
D.
卫星微波 网状结构
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【单选题】在测量某目标竖直角的过程中，望远镜大概水平时竖盘读数为87°10′12″，望远镜抬高一个角度，得到读数为53°46′24″，则此目标竖直角为（ ）
A.
36°13′36″
B.
-36°13′36″
C.
2°49′48″
D.
-2°49′48″
【单选题】In the year 1066, William the Conqueror invaded England from France, defeating the Saxon king Harold at___.
A.
the Battle of Hastings
B.
the Battle of Crecy
C.
the Battle of Agincourt
D.
the Battle of waterloo
【简答题】With the rapid development of network, network literature, as a new literary form, has been rising in contemporary literature. This form. of literature allows everybody to be a writer if he or she wan...
【简答题】(P/A,i,n)代表的计算公式是。
【简答题】The Saxon King, ( ),also known as"father of the British Navy".
【单选题】根据以下内容，回答下列各题。 Internet use appears to cause a drop in psychological health, according to research at Carnegie Mellon University. Even people who spent just a few hours a week on the Internet experien...
A.
People spend more time on the Internet now.
B.
People spend less time with their families and friends now.
C.
The Net proves socially healthier than television.
D.
lnternet use may cause a drop in psychological health.
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