American college students are increasingly with credit card debt and the consequences can be rather serious.
A. boosted
B. burdened
C. substituted
D. dominated
网友回答
A. boosted
(答案→)B. burdened
C. substituted
D. dominated
解析：考查固定词组。固定词组be burdened with负担着…；句意：美国的大学生负担着越来越重的信用卡债务，结果可能是非常严重的。故B正确。