The air•pollution index went up t0 300 within a few days.A.RightB.WrongC.Not m
The air•pollution index went up t0 300 within a few days.
A.Right
B.Wrong
C.Not mentioned
The air•pollution index went up t0 300 within a few days.
A.Right
B.Wrong
C.Not mentioned
第1题
A.Y
B.N
C.NG
第3题
The kind of air pollution that is most harmful to health is caused by ______.
A.lead emissions
B.carbon-dioxide emissions
C.sulphur dioxide emissions
D.small particles
第4题
Air pollution can be as harmful to one\\\\\\\'s health___________
A.on the downwind side
B.during rush hours
C.in spring and autumn
D.to toxic air
E.between autumn and winter
F.as exposure to nuclear radiation
第5题
The purpose of the passage is to ______.
A.describe the harmful air pollution
B.explain the way to prevent air pollution
C.recommend a method to avoid air pollution
D.show the worries about the air pollution
第6题
Which is not the major environment issues of America?()
A、Air pollution
B、Water shortage
C、Loss of agricultural land
D、desertification
第7题
There is a U. N. convention that can cover ______.
A.problem between neighbors
B.problem between states which do not share a border
C.problems on air pollution
D.trans-boundary air pollution
第8题
Air pollution is as damaging as light pollution.
A.Right
B.Wrong
C.Not mentioned
第9题
A.peculiarity
B.prosperity
C.property
D.Priority
第10题
Which of the following isbest supported by the passage?
A.To effectively control pollution, local government should regularlyrevise the air pollution laws.
B.One of the most important steps in preserving natural lands is tobetter enforce air pollution laws.
C.Scientists should be consulted in order to establish uniform. limitsfor all air pollutants.
D.Human activities have great impact on air pollution.
第11题
______ at in this way, the air pollution in this region doesnt seem so serious.
A.Having looked
B.Looked
C.Looking
D.To look