题目内容：
Chinese and Russian scientists have reported that in places __________ stress is building up, the radon levels of the water build up too.
A．what B．that
C．which
D．where
参考答案：
答案解析：
单选题：Chinese and Russian scientists have reported that in places
- 题目分类：英语(二)
- 题目类型：单选题
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B．that
C．which
D．where