题目内容：
Mild electric current had been thought to __________ overactive brain regions that cause disease, but in some cases, it may boost nerves' activity and change their firing patterns.
参考答案：
答案解析：
单选题：Mild electric current had been thought to __________ overact
- 题目分类：GRE
- 题目类型：单选题
- 查看权限：VIP