Academic records from other institutions often become part of a university's official file and can neither be returned to a student nor duplicated.

单项选择题It was a question of making sure that certain needs were addressed, notably in the pensions area.

单项选择题These are our motives for doing it.

单项选择题The Constitution's vague nature has given it the flexibility to be adapted when circumstances change.

单项选择题Human facial expressions differ from those of animals in the degree to which they can be deliberately controlled and modified.

单项选择题The expedition reached the summit at 10:30 that morning.