Paper produced every year is __________
问题:
Paper produced every year is __________ the world’s production of vehicles.
A.the three weight of
B.three times the weight of
C.as three times heavy as
D.three times as heavier as
Paper produced every year is __________ the world’s production of vehicles.
A.the three weight of
B.three times the weight of
C.as three times heavy as
D.three times as heavier as