单项选择题

Who is the audience().

A. Professors.
B. The employees of the university.
C. New students.
D. The new teachers of the university.

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单项选择题

A. Mechanical problems.
B. Attacks from North Korea.
C. A mine explosion.
D. Bad weather condition.

单项选择题

A. 15%
B. 20%
C. 25%
D. 30%

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