A.is much more difficult to understand
B.is always clear in language
C.presents a negative viewpoint towards the Semitics
D.is not as popular as his tragedies
A.misleading
B.illogical
C.complicated
D.inappropriate
A.Population explosion.
B.Too much consumption.
C.It is out-dated to reuse things.
D.High unemployment rate.
A.Building sewage-treatment plants.
B.Strict restriction on the discharge of polluted water to rivers or lakes nearby.
C.Using gigantic tanks to separate solid materials from water.
D.Setting underground sewage system to purify water.