People complain that decisions to approve or deny a permit are often________rather than based on fixed criteria.                                               
#11033
A
appropriate
B
conscious
C
arbitrary
D
controversial
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Audiences were greatly ______ by the video class about weightless conditions _____ in Tianggon-1 space station. 
#12405
A
impressing; presenting
B
impressed; presenting
C
impressing; presented
D
impressed; presented
The newly-built pavilion is _____ the old one.
#14375
A
three times so big as
B
3 times bigger than
C
as three times big as
D
3 times the big of