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【单选题】
用来保证产品兼容性、实现网络中的通讯能力的规范被称之为:
A.
网络标准
B.
电子通信标准
C.
技术标准
D.
互联网标准
拍照语音搜题,微信中搜索"皮皮学"使用
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【简答题】阅读理解。 When I was nine years old I lived in a small town. I found an ad for selling greeting cards in the back of a children's magazine. I thought to myself I could do this. I begged my mother to let m...
【单选题】Faith How many people do you think will show up for dinner? Louis Only two of people we invited can't come, so there should be six people. Faith ______I cleaned out the store when I bought the food fo...
A.
We can make do with paper towels.
B.
These steaks look great but expensive.
C.
I have to stay up late cleaning up.
D.
We' re going to have a lot of extra food.
【多选题】按照阀门的驱动力分类,阀门可分为
A.
电动阀门
B.
自动阀门
C.
气动阀门
D.
液动阀门
【单选题】Which of the following is the most coherent sentence ?
A.
A man is judged not only by what he says, but also by his deeds.
B.
We thought she was charming, intelligent and a very capable young woman.
C.
We have great faith and high hopes for her.
D.
We thought she was charming, intelligent and very capable.
【判断题】闭和水准路线高差闭和差的计算公式为fh=∑h。
A.
正确
B.
错误
【单选题】关于路由器的分类及区别下列错误的是
A.
根据路由表建立与刷新的方式不同,分为静态路由表和动态路由表两种
B.
静态路由是由人工建立和管理的,时间久了会自动发生变化
C.
动态路由信息会随着网络结构的调整自动更新路径,并自动使用路径选择重新配置
D.
静态路由安全可靠,稳定性高,开销也小
【简答题】闭和水准路线高差闭和差的计算公式为 。
【单选题】当血钾逐步升高时,心肌的兴奋性变化为( )
A.
先降低后升高
B.
逐步降低
C.
逐步升高
D.
先升高后降低
E.
基本不变
【简答题】闭和水准路线高差闭和差的计算公式为 。
【单选题】选出正确的句子
A.
A man is judged not only by what he does but also by his words.
B.
We have great faith and high hopes for her.
C.
Du Fu was one of the greatest poets of the Tang period.
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