皮皮学,免费搜题
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【判断题】
第一类错误是,零假设 H 0 实际上是错的,却没有被否定。第二类错误则是,零假设 H 0 实际上是正确的,却被否定了。
A.
正确
B.
错误
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举一反三
【单选题】Which of the following is NOT true with Li-Fi?
A.
Products involving it already exist.
B.
It may become an alternative to Wi-Fi.
C.
It can exacerbate the problem of capacity.
D.
The speed of it already exceeds some of the Wi-Fi routers.
【单选题】数据库系统的核心软件是( )
A.
数据库
B.
数据库管理系统
C.
建模软件
D.
开发工具
【简答题】广告媒体选择应考虑哪些因素?
【简答题】选择汽车广告媒体应考虑哪些因素?
【单选题】Why is the man watching television?
A.
He's taking a break from studying.
B.
He has already finished studying.
C.
He was assigned to watch a program by his professor.
D.
He's finding out some information for a friend.
【简答题】广告媒体的选择应考虑哪些因素? 广告创意的原则有那些?
【简答题】stepping,代表()。
【判断题】主谓宾结构: Linda has already finished the task.
A.
正确
B.
错误
【简答题】选择广告媒体时应考虑哪些因素?
【单选题】Linda already knows what she wants to get.
A.
正确
B.
错误