The government _____ air quality in urban areas from level one to five: excellent, fairly good,slightly polluted, poor and dangerous.
A arranges B. classifies C. distributes D. divides
相关试题
Now that we've discussed our problem, are people happy with the decisions?
| A． | taking | B． | take | C． | taken | D． | to take |
Everybody was touched _____ words after they heard her moving story. 
| A．beyond | B．without | C．of | D．in |
One of the most important questions they had to consider was _____ of public health. 
| A．what | B．this |
C．that | D．which |
Encourage your children to try new things, but try not to ___ them too hard.
| A．draw | B．strike | C．rush | D．push |
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