题目内容：
This growth, ____________________ mainly in Southeast Asia and Africa, has dramatic consequences.选择一项：
a.
happens
b.
which is happening
c.
which happening
d.
which happened
参考答案：
选择题：This growth, ____________________ mainly in Southe
- 题目分类：国家开放大学-开放英语4
- 题目类型：选择题
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选择一项：
a.
happens
b.
which is happening
c.
which happening
d.
which happened