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【单选题】
公司有用户反映在使用网络传输文件时,速度非常低,管理员在网络中使用Wireshark软件抓包发现了一些重复的帧,下面关于可能的原因或解决方案描述正确的是()。
A.
公司网络的交换设备必须进行升级改造
B.
网络在二层存在环路
C.
网络中没有配置VLAN
D.
交换机在MAC地址表中查不到数据帧的目的MAC地址时,会泛洪该数据帧
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参考答案：
举一反三
【单选题】对异种免疫血清脱敏疗法的各项描述中，错误的是（）
A.
适用于已查明而难以避免接触的变应原的个体
B.
采用小剂量、短间隔、多次注射的方法
C.
机体靶细胞分批脱敏，最后致敏状态全部解除
D.
脱敏是暂时的
查看完整题目与答案
【单选题】Total research and development expenditure for the area of waste _______has steadily increased for the past 3 years.
A.
construction
B.
currency
C.
abundance
D.
disposal
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【简答题】The total area of China is about 9,600,000 square kilometers.(英译中)
查看完整题目与答案
【单选题】This method, ______in the area near Shanghai, resulted in a market rise in total production.
A.
trying
B.
tried
C.
was tried
D.
has been tried
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【单选题】Total surplus in a market is represented by the total area
A.
under the demand curve and above the price.
B.
above the supply curve and up to the equilibrium price.
C.
under price and up to the point of equilibrium.
D.
between the demand and supply curves up to the point of equilibrium.
查看完整题目与答案
【简答题】The total area of land on earth is about 149 million square kilometers, or about 29 percent of the total area of the earth. The average height of the land is about 750 metres above the sea level. The ...
查看完整题目与答案
【简答题】患者女性，28岁，体重50kg，因“双下肢无力12小时，全身无力2小时”来诊。患者7日前开始发热，腹泻，未经治疗5日后自愈。12小时前行走中发现双下肢无力，2小时前全身无力，不能起床。肢体无疼痛麻木。未出现头痛、恶心、呕吐等不适。尿粪无异常。查体：意识清，言语流利。双上睑无下垂。双侧瞳孔等大正圆，直径3mm，对光反应敏感。双侧鼻唇沟对称。口角无歪斜。转颈有力。四肢肌力1级，肌张力低，腱反射减弱，痛...
查看完整题目与答案
【简答题】阅读理解。 The total area of land on earth is about 149 million square kilometers, or about 39 percent of the total area of the earth. The average height of the land is about 750 metres above the sea level...
查看完整题目与答案
【单选题】Their total area accounts for about ( ) of the total ocean area.
A.
0.7
B.
0.89
C.
0.9
D.
0.97
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【单选题】粉尘螨注射剂
A.
用于脱敏治疗，适用于吸入型哮喘、过敏性鼻炎、异位性皮炎等
B.
注射前应进行皮试
C.
不良反应有局部红肿、皮疹或轻微哮喘等
D.
6岁以下儿童适宜使用
E.
严重心血管疾患和肾功能严重低下者禁用
查看完整题目与答案
相关题目：
【单选题】对异种免疫血清脱敏疗法的各项描述中，错误的是（）
A.
适用于已查明而难以避免接触的变应原的个体
B.
采用小剂量、短间隔、多次注射的方法
C.
机体靶细胞分批脱敏，最后致敏状态全部解除
D.
脱敏是暂时的
查看完整题目与答案
【单选题】Total research and development expenditure for the area of waste _______has steadily increased for the past 3 years.
A.
construction
B.
currency
C.
abundance
D.
disposal
查看完整题目与答案
【简答题】The total area of China is about 9,600,000 square kilometers.(英译中)
查看完整题目与答案
【单选题】This method, ______in the area near Shanghai, resulted in a market rise in total production.
A.
trying
B.
tried
C.
was tried
D.
has been tried
查看完整题目与答案
【单选题】Total surplus in a market is represented by the total area
A.
under the demand curve and above the price.
B.
above the supply curve and up to the equilibrium price.
C.
under price and up to the point of equilibrium.
D.
between the demand and supply curves up to the point of equilibrium.
查看完整题目与答案
【简答题】The total area of land on earth is about 149 million square kilometers, or about 29 percent of the total area of the earth. The average height of the land is about 750 metres above the sea level. The ...
查看完整题目与答案
【简答题】患者女性，28岁，体重50kg，因“双下肢无力12小时，全身无力2小时”来诊。患者7日前开始发热，腹泻，未经治疗5日后自愈。12小时前行走中发现双下肢无力，2小时前全身无力，不能起床。肢体无疼痛麻木。未出现头痛、恶心、呕吐等不适。尿粪无异常。查体：意识清，言语流利。双上睑无下垂。双侧瞳孔等大正圆，直径3mm，对光反应敏感。双侧鼻唇沟对称。口角无歪斜。转颈有力。四肢肌力1级，肌张力低，腱反射减弱，痛...
查看完整题目与答案
【简答题】阅读理解。 The total area of land on earth is about 149 million square kilometers, or about 39 percent of the total area of the earth. The average height of the land is about 750 metres above the sea level...
查看完整题目与答案
【单选题】Their total area accounts for about ( ) of the total ocean area.
A.
0.7
B.
0.89
C.
0.9
D.
0.97
查看完整题目与答案
【单选题】粉尘螨注射剂
A.
用于脱敏治疗，适用于吸入型哮喘、过敏性鼻炎、异位性皮炎等
B.
注射前应进行皮试
C.
不良反应有局部红肿、皮疹或轻微哮喘等
D.
6岁以下儿童适宜使用
E.
严重心血管疾患和肾功能严重低下者禁用
查看完整题目与答案
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