All the universities have duty to _______ their students ____of the quick development of the scientific world.
| A．make; known | B．have; understood |
| C．keep; informed | D．find; included |
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All the universities have duty to _______ their students ____of the quick development of the scientific world.
| A．make; known | B．have; understood |
| C．keep; informed | D．find; included |
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