皮皮学，免费搜题
登录
logo - 刷刷题
搜题
【单选题】
水平地面上两个质点甲和乙，同时由同一地点沿同一方向作直线运动，它们的v-t图线如图所示，在0-4s内下列关于甲乙质点的运动判断正确的是（）
A.
2s时甲乙质点速度相等，相距最远
B.
前2s乙质点追甲质点，2s后甲质点追乙质点
C.
在第4s内，甲质点的平均速度大于乙质点的平均速度
D.
在第4s质点追上甲质点，4s后甲质点可以再次追上乙质点
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案：
举一反三
【简答题】某商场出售电器设备，以A事件表示“出售74Cm长虹电视机”，以事件表示“出售74Cm康佳电视机”，则只出售一种品牌的电视机可以表示为（）；至少出售一种品牌的电视机可以表示为（）；两种品牌的电视机都出售可以表示为（）.
查看完整题目与答案
【判断题】Companies cannot register brand names if they don’t yet have products.
A.
正确
B.
错误
查看完整题目与答案
【单选题】What can be inferred about the man?
A.
He has been to New Mexico many times.
B.
He has just graduated from college.
C.
He enjoys sports.
D.
He has relatives in Albuquerque.
查看完整题目与答案
【简答题】某商场出售电器设备,以事件 表示“出售74 Cm长虹电视机”,以事件 表示“出售74 Cm康佳电视机”,则分别用A和B事件表示以下事件。(1)只出售一种品牌的电视机;(2)至少出售一种品牌的电视机;(3)两种品牌的电视机都出售。
查看完整题目与答案
【单选题】Your project,run for a customer,is coming to an end.The customer has been contractually granted a three years warranty period for the product of the project.What should the project manager do first?
A.
Hand all relevant documentation over to the organizational unit responsible for handling the warranty.
B.
There is no additional work to be done.The contract should describe all processes in sufficient detail.
C.
Changes on the product can affect warranty clauses.Ensure that theseclauses are aligned with the final specifications.
D.
According to many legislations,you cannot formally close a project before the end of the warranty period.
查看完整题目与答案
【单选题】Much of the power of the trade unions has been lost.______, their political influence should very great..
A.
As a result
B.
As usual
C.
Even so
D.
So far
查看完整题目与答案
【简答题】某商场出售电器设备,以事件 表示“出售74 Cm长虹电视机”,以事件 表示“出售74 Cm康佳电视机”,则只出售一种品牌的电视机可以表示为____、至少出售一种品牌的电视机可以表示为____、两种品牌的电视机都出售可以表示为____.
查看完整题目与答案
【单选题】Coincident with concerns about the accelerating loss of species and habitats has been a growing appreciation of the importance of biological diversity, the number of species in a particular ecosystem,...
A.
humans are destroying thousands of species
B.
there are thousands of insect species
C.
the sea is even richer in life than the rain forests
D.
coral reefs are similar to rain forests
查看完整题目与答案
【简答题】每一种媒介都有自己的( )规则,并以自己特有的方式( )和( )事实。
查看完整题目与答案
【单选题】What has the man been looking forward to?
A.
A film about the Great Wall.
B.
A visit to the Great Wall.
C.
A talk on the Great Wall.
查看完整题目与答案
相关题目：
【简答题】某商场出售电器设备，以A事件表示“出售74Cm长虹电视机”，以事件表示“出售74Cm康佳电视机”，则只出售一种品牌的电视机可以表示为（）；至少出售一种品牌的电视机可以表示为（）；两种品牌的电视机都出售可以表示为（）.
查看完整题目与答案
【判断题】Companies cannot register brand names if they don’t yet have products.
A.
正确
B.
错误
查看完整题目与答案
【单选题】What can be inferred about the man?
A.
He has been to New Mexico many times.
B.
He has just graduated from college.
C.
He enjoys sports.
D.
He has relatives in Albuquerque.
查看完整题目与答案
【简答题】某商场出售电器设备,以事件 表示“出售74 Cm长虹电视机”,以事件 表示“出售74 Cm康佳电视机”,则分别用A和B事件表示以下事件。(1)只出售一种品牌的电视机;(2)至少出售一种品牌的电视机;(3)两种品牌的电视机都出售。
查看完整题目与答案
【单选题】Your project,run for a customer,is coming to an end.The customer has been contractually granted a three years warranty period for the product of the project.What should the project manager do first?
A.
Hand all relevant documentation over to the organizational unit responsible for handling the warranty.
B.
There is no additional work to be done.The contract should describe all processes in sufficient detail.
C.
Changes on the product can affect warranty clauses.Ensure that theseclauses are aligned with the final specifications.
D.
According to many legislations,you cannot formally close a project before the end of the warranty period.
查看完整题目与答案
【单选题】Much of the power of the trade unions has been lost.______, their political influence should very great..
A.
As a result
B.
As usual
C.
Even so
D.
So far
查看完整题目与答案
【简答题】某商场出售电器设备,以事件 表示“出售74 Cm长虹电视机”,以事件 表示“出售74 Cm康佳电视机”,则只出售一种品牌的电视机可以表示为____、至少出售一种品牌的电视机可以表示为____、两种品牌的电视机都出售可以表示为____.
查看完整题目与答案
【单选题】Coincident with concerns about the accelerating loss of species and habitats has been a growing appreciation of the importance of biological diversity, the number of species in a particular ecosystem,...
A.
humans are destroying thousands of species
B.
there are thousands of insect species
C.
the sea is even richer in life than the rain forests
D.
coral reefs are similar to rain forests
查看完整题目与答案
【简答题】每一种媒介都有自己的( )规则,并以自己特有的方式( )和( )事实。
查看完整题目与答案
【单选题】What has the man been looking forward to?
A.
A film about the Great Wall.
B.
A visit to the Great Wall.
C.
A talk on the Great Wall.
查看完整题目与答案
参考解析：
知识点：
题目纠错 0
发布
创建自己的小题库 - 刷刷题