Paper produced every year is the world’s production of vehicles.
A. the three times weight of
B. three times the weight of
C. as three times heavy as
D. three times as heavier as
网友回答
A. the three times weight of
(答案→)B. three times the weight of
C. as three times heavy as
D. three times as heavier as
解析：句意，每年生产的纸张数量是世界车辆生产重量的3倍。“A is倍数+the weight of B”(A是B的几倍重)，这是固定用法，故选B。