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【单选题】
使用者切换用户身份的指令是_______A.
passwd
B.
log
C.
who
D.
su
手机使用
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反馈参考答案：
举一反三
【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.
【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。
【单选题】________ work has been done to improve the people's living standard. [ ]
A.
Many
B.
A great many
C.
A great deal of
D.
A large number of
【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.
【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
【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
【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。
【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.
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