题目内容：
The output of chemical fertilizer has been raised 5 times as against last year.
A.化肥产量比去年增长了5倍。
B.化肥产量比去年增长了4倍。
C.化肥产量比去年增长了6倍。
D.去年化肥产量增长了5倍。
参考答案：
选择题：The output of chemical fertilizer has been raised 5 times as
- 题目分类：中国大学MOOC慕课
- 题目类型：选择题
- 号外号外：注册会员即送体验阅读点！