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【简答题】
无线局域网的MAC协议有哪些特点?为什么在无线局域网中不能作用CSMA／CD协议而必须使用CSMA／CA的协议?
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参考答案：
举一反三
【单选题】治疗惊痫抽搐，不论寒证或热证均可选用的药物是( )
A.
天麻
B.
天南星
C.
龙骨
D.
珍珠母
E.
蝉蜕
查看完整题目与答案
【单选题】Is this the school _________ you visited some foreigners a few months ago?
A.
that
B.
which
C.
the one
D.
where
查看完整题目与答案
【单选题】治疗惊痫抽搐之证,不论寒证或热证均可使用的药物是
A.
天麻
B.
天南星
C.
龙骨
D.
珍珠母
E.
蝉蜕
查看完整题目与答案
【单选题】能疏散风热，可用治风热目赤肿痛的药物有：
A.
羚羊角
B.
僵蚕
C.
石决明
D.
刺蒺藜
E.
珍珠母
查看完整题目与答案
【单选题】(2013·河北石家庄教学质检Ⅱ)Liang Bo, the champion of the Voice of China, is a man of ________ few words but has ________ remarkable inner strength.
A.
/; a
B.
a; a
C.
the; /
D.
/; the
查看完整题目与答案
【单选题】治心经热盛神昏谵语可用（）
A.
代赭石
B.
僵蚕
C.
天麻
D.
羚羊角
E.
珍珠母
查看完整题目与答案
【单选题】TO FOREIGNERS, few things seem as peculiarly British as the habit of sending young children away from home to school. At first glance, boarding schools are thriving, with almost 70,000 children within...
A.
posing a contrast
B.
justifying an assumption
C.
making a comparison
D.
explaining a phenomenon
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【单选题】( )指的是镜头的组接和剪辑,是电影、电视反映生活的独特思维方法,也是电影、电视至关重要的艺术表现语言。
A.
镜头
B.
电脑特效
C.
蒙太奇
D.
配乐
查看完整题目与答案
【单选题】At the inauguration ceremony, the newly elected president ______ his speech with a few words of thanks to his supporters.
A.
preceded
B.
proceeded
C.
precluded
D.
advanced
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【单选题】When I was at college I __________ three foreign languages， but I all except for a few words of each.
A.
spoke ； had forgotten
B.
spoke ； have forgotten
C.
had spoken； had forgotten
D.
had spoken ； have forgotten
查看完整题目与答案
相关题目：
【单选题】治疗惊痫抽搐，不论寒证或热证均可选用的药物是( )
A.
天麻
B.
天南星
C.
龙骨
D.
珍珠母
E.
蝉蜕
查看完整题目与答案
【单选题】Is this the school _________ you visited some foreigners a few months ago?
A.
that
B.
which
C.
the one
D.
where
查看完整题目与答案
【单选题】治疗惊痫抽搐之证,不论寒证或热证均可使用的药物是
A.
天麻
B.
天南星
C.
龙骨
D.
珍珠母
E.
蝉蜕
查看完整题目与答案
【单选题】能疏散风热，可用治风热目赤肿痛的药物有：
A.
羚羊角
B.
僵蚕
C.
石决明
D.
刺蒺藜
E.
珍珠母
查看完整题目与答案
【单选题】(2013·河北石家庄教学质检Ⅱ)Liang Bo, the champion of the Voice of China, is a man of ________ few words but has ________ remarkable inner strength.
A.
/; a
B.
a; a
C.
the; /
D.
/; the
查看完整题目与答案
【单选题】治心经热盛神昏谵语可用（）
A.
代赭石
B.
僵蚕
C.
天麻
D.
羚羊角
E.
珍珠母
查看完整题目与答案
【单选题】TO FOREIGNERS, few things seem as peculiarly British as the habit of sending young children away from home to school. At first glance, boarding schools are thriving, with almost 70,000 children within...
A.
posing a contrast
B.
justifying an assumption
C.
making a comparison
D.
explaining a phenomenon
查看完整题目与答案
【单选题】( )指的是镜头的组接和剪辑,是电影、电视反映生活的独特思维方法,也是电影、电视至关重要的艺术表现语言。
A.
镜头
B.
电脑特效
C.
蒙太奇
D.
配乐
查看完整题目与答案
【单选题】At the inauguration ceremony, the newly elected president ______ his speech with a few words of thanks to his supporters.
A.
preceded
B.
proceeded
C.
precluded
D.
advanced
查看完整题目与答案
【单选题】When I was at college I __________ three foreign languages， but I all except for a few words of each.
A.
spoke ； had forgotten
B.
spoke ； have forgotten
C.
had spoken； had forgotten
D.
had spoken ； have forgotten
查看完整题目与答案
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