In American universities, classes are often arranged in more flexible ________ and
A. scales
B. patterns
C. grades
D. ranks
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As a ________ actor, he can perform, sing, dance and play several kinds of musical
A. flexible
B. versatile
C. sophisticated
D. productive
Which of the following is mentioned in the passage？
A strict law against computer crimes must be enforced.
B. Companies need to impose restrictions on confidential information.
Companies will guard against computer crimes to protect their reputation.
D. Companies usually hesitate to uncover computer crimes.
The secret agent concealed her mission, therefore many local people were ________ was a good person.
A. betrayed
B. driven
C. deceived
D. convinced
According to the author, competition differs from conflict in that ________.
A. it results in war in most cases
B. it induces efforts to expand territory
C. it is kind of opposition among aria entities
D. it is essentially a struggle for existence
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