Usually a meteorological observatory (气象台) _____ air quality in urban areas from one to five: excellent, fairly good, slightly polluted, poor, and dangerous.
#13189
A
identifies
B
purifies
C
classifies
D
clarifies
推荐题目
The more one is ______ the English－speaking environment，the better he or she will learn the language.
#12940
A
exposed to
B
filled in
C
caught on
D
kept up
---How do you look at the issue? ---My point is that our government _______ make the public aware of the seriousness of water shortage.
#13034
A
is supposed to
B
contributes to
C
is committed to
D
is devoted to
In my opinion, he is a(n) ________ person, that is, he says what he thinks.
#10838
A
modest
B
respectful
C
outspoken
D
easygoing
Just as a famous Chinese saying goes, a timely heavy snow is a ______ of good harvest next year.
#14427
A
mark
B
track
C
sign
D
appearance
To the surprise of the manager, Mrs. Black, who is not easy to deal with, quickly ________ and accepted the new work schedule.
#11109
A
hesitated
B
condemned
C
compromised
D
complained