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【多选题】
关于网络安全通信协议的正确说法包括( )。A.
网络安全通信协议是在网络中使用的具有安全功能的通信协议，用以弥补原有通信协议的安全缺陷
B.
TCP/IP协议簇和IEEE的各个协议早期设计应用为目的，未充分考虑安全性
C.
IPSec协议可以封装TCP和UDP的报文
D.
IPSec 协议建立的隧道不能穿越 Internet
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皮皮学刷刷变学霸
举一反三
【判断题】In western countries, people don't always say thank you to other people.( )
A.
正确
B.
错误
【单选题】关于假设检验,下面哪一项说法是正确的:
A.
单侧检验优于双侧检验
B.
若p> α，则接受h0犯错误的可能性很小
C.
采用配对t检验还是两样本t检验是由实验设计方案决定的
D.
检验水准 α只能取0.05
【简答题】四项基本原则
【简答题】A．There are too many students in the discussion. B．Some people don't let other people talk. C．Questions to discuss are too easy. D．She doesn't have time to prepare the discussion.
【简答题】A．Glasses for people who couldn't see anything. B．Glasses for people who couldn't read. C．Glasses for people who couldn't see well. D．Glasses for people who wore them to protect their eyes from sunshi...
【简答题】In Britain, people couldn't decide
【单选题】— Will there be more people in the future ? — No, ________. There will be fewer people.
A.
there is
B.
there isn’t
C.
there will
D.
there won’t
【简答题】On________ （平均），people who don’t smoke are healthier than people who do.
【单选题】—Won’t people work in the future? —__________. Robots will only do some of the work for people.
A.
Yes, they will
B.
Yes, they won’t
C.
No, they will
D.
No, they won’t
【单选题】It is true in American society that ______.
A.
many people don't take naps
B.
people don't like taking naps even given the chance
C.
people are prohibited to take naps
D.
American people need little sleep
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