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单项选择题
A.He has been to Seattle many times.B.He has chaired a lot of conferences.C.He holds a high position in his company.D.He lived Seattle for many years.
A.He has been to Seattle many times.
B.He has chaired a lot of conferences.
C.He holds a high position in his company.
D.He lived Seattle for many years.
单项选择题
A.They set their own exams.B.They select their own students.C.They award their own degrees.D.They organize their own laboratory work.
A.They set their own exams.
B.They select their own students.
C.They award their own degrees.
D.They organize their own laboratory work.
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