皮皮学，免费搜题
登录
搜题
【单选题】
The terms "bitmap," "b-tree," and "hash" refer to which type of database structure?
A.
view；
B.
function；
C.
index；
D.
stored procedure；
E.
trigger；
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【单选题】When the teacher came into the classroom, all of us __________ the classroom.
A.
are cleaning
B.
were cleaning
C.
cleaned D are  cleaned
查看完整题目与答案
【单选题】听力原文： World Environment Day was established by the United Nations General Assembly in 1972 to mark the opening of the Stockholm Conference on the Human Environment. World Environment Day can be celebr...
A.
In 1992.
B.
In 2000.
C.
In 2004.
D.
In 1972.
查看完整题目与答案
【单选题】There isn’t a teacher in the classroom and all the students are talking. So the classroom is        ________.
A.
quiet                    
B.
strict                  
C.
noisy
查看完整题目与答案
【单选题】There is a blackboard _______ the classroom and another one _______ the classroom.of [     ]
A.
in the front of, at the back of
B.
in the front of, at back of
C.
in front of, at the back of
D.
in front of, at back
查看完整题目与答案
【单选题】When the teacher came into the classroom, she was not ________ because the classroom was not as ________  as  ________. [     ]
A.
pleased; clean; usually
B.
angry; cleaning; usual
C.
pleased; clean; usual
D.
happy; clean; usually
查看完整题目与答案
【判断题】原文:in the green tree 译文:最佳状态
A.
正确
B.
错误
查看完整题目与答案
【单选题】What's this? [     ]
A.
It's a classroom.
B.
Go to the classroom.
查看完整题目与答案
【单选题】According to the speaker Liu Yuhan, which one does she prefer, the traditional classroom or the online classroom?
A.
traditional classroom
B.
online classroom
查看完整题目与答案
【单选题】听力原文： World Environment Day was established by the United Nations General Assembly in 1972 to mark the opening of the Stockholm Conference on the Human Environment. World Environment Day can be celebr...
A.
In 1992.
B.
In 2000.
C.
In 2004.
D.
In 1972.
查看完整题目与答案
【单选题】听力原文： We hear it a lot in the news these days: 'Recycle newspapers and save a tree. Collect bottles and calls so they can be reused in the manufacturing of new products.' Protecting our delicate envir...
A.
Important Keys to Recycling Paper.
B.
Technological Advances Improve Recycling.
C.
Steps to Improve Recycling.
D.
A Greater Demand for Improving Recycling.
查看完整题目与答案
相关题目：
【单选题】When the teacher came into the classroom, all of us __________ the classroom.
A.
are cleaning
B.
were cleaning
C.
cleaned D are  cleaned
查看完整题目与答案
【单选题】听力原文： World Environment Day was established by the United Nations General Assembly in 1972 to mark the opening of the Stockholm Conference on the Human Environment. World Environment Day can be celebr...
A.
In 1992.
B.
In 2000.
C.
In 2004.
D.
In 1972.
查看完整题目与答案
【单选题】There isn’t a teacher in the classroom and all the students are talking. So the classroom is        ________.
A.
quiet                    
B.
strict                  
C.
noisy
查看完整题目与答案
【单选题】There is a blackboard _______ the classroom and another one _______ the classroom.of [     ]
A.
in the front of, at the back of
B.
in the front of, at back of
C.
in front of, at the back of
D.
in front of, at back
查看完整题目与答案
【单选题】When the teacher came into the classroom, she was not ________ because the classroom was not as ________  as  ________. [     ]
A.
pleased; clean; usually
B.
angry; cleaning; usual
C.
pleased; clean; usual
D.
happy; clean; usually
查看完整题目与答案
【判断题】原文:in the green tree 译文:最佳状态
A.
正确
B.
错误
查看完整题目与答案
【单选题】What's this? [     ]
A.
It's a classroom.
B.
Go to the classroom.
查看完整题目与答案
【单选题】According to the speaker Liu Yuhan, which one does she prefer, the traditional classroom or the online classroom?
A.
traditional classroom
B.
online classroom
查看完整题目与答案
【单选题】听力原文： World Environment Day was established by the United Nations General Assembly in 1972 to mark the opening of the Stockholm Conference on the Human Environment. World Environment Day can be celebr...
A.
In 1992.
B.
In 2000.
C.
In 2004.
D.
In 1972.
查看完整题目与答案
【单选题】听力原文： We hear it a lot in the news these days: 'Recycle newspapers and save a tree. Collect bottles and calls so they can be reused in the manufacturing of new products.' Protecting our delicate envir...
A.
Important Keys to Recycling Paper.
B.
Technological Advances Improve Recycling.
C.
Steps to Improve Recycling.
D.
A Greater Demand for Improving Recycling.
查看完整题目与答案