A、
It is a kind of VOCs that mainly comes from building materials.
B、
It can make people blind at high concentrations.
C、
It is the principle constituent of air fresheners.
D、
It can cause nervous system problems at high concentrations.
【正确答案】
D
【答案解析】
A、
Work out all the details on the nail salon solution.
B、
Conduct a new experiment in a nail salon.
C、
Find out a truely green solution of air pollution.
D、
Test more houseplants on their air cleaning ability.
【正确答案】
A
【答案解析】
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