Teachers have to constantly update their knowledge in order to maintain their professional ____. 
#12327
A
consequence
B
independence
C
competence
D
intelligence
推荐题目
It was dark and he had already lost his ________of direction.
#13601
A
thought
B
feeling
C
idea
D
sense
The newly-built lab is ______ the old one.
#12726
A
three times so big as
B
as three times big as
C
three times bigger than
D
three times the size