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【判断题】
在数据库系统的三级模式两级映像结构中,外模式到模式的映像是为了保证数据的逻辑独立性 。A.
正确
B.
错误
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【多选题】Who may be asked to writer a character reference letter?
A.
your neighbor
B.
your girlfriend
C.
your janitor
D.
your relative
【简答题】Mrs. Joseph Groeger died recently in Vienna, Austria, people asked the obvious question. “Why did she live to be 107?” Answers were provided by a survey conducted among 148 Viennese men and women who ...
【判断题】Anyone who attends a meeting without speaking may be asked to take minute.
A.
正确
B.
错误
【简答题】翻译的未来会怎样? I would like to use the rest of my allotted time to say a few words about something that has been perceived by some as a threat – indeed, a great threat – to our profession, namely machine t...
【单选题】Economists who are asked to choose between two different government policies may disagree because:
A.
. they make different value judgments about the desirability of the policies.
B.
. they are basing their conclusions on models that make different simplifications.
C.
. as a matter of course, economists often take opposing points of view so that all sides of a question may be discussed.
D.
. they make different value judgments about the desirability of the policies and because they are basing their conclusions on models that make different simplifications.
【简答题】Have you ever seen a movie in which a building was burned down or a bridge was destroyed? Have you seen films in which a train crashed or a ship sank into the ocean? If so, you may have wondered how t...
【多选题】A bioethicist may be asked to answer such questions as:
A.
Is it okay to let a person refuse life-saving medical treatment? Should parents be allowed to choose the sex of their child?
B.
Should terminally ill patients be allowed to end their lives with physician-prescribed medication? Can doctors quarantine or forcibly treat patients carrying an infectious disease like tuberculosis?
C.
Who should receive limited medical resources like organ transplants? Can a patient with renal failure buy a healthy kidney from a young man?
D.
Can researchers destroy frozen embryos in order to isolate stem cells that may be used to develop new medical treatments? Do we have a right to die?
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