Teachers have to constantly update their knowledge in order to maintain their professional ___.
C
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The number of tickets _____ will be determined by the size of the stadium.
A city is the product of the human hand and mind, __________ man's intelligence and creativity.
A university is an educational institution which _____ degrees and carries out research.
Favorable policies are ___________ to encourage employees' professional development.
Willallthose_____theproposalraisetheirhands?