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题目内容
Although streams of solar particles cause beautiful auroras-the northern and southern lights--sometimes their consequences are less _____________: their electromagnetic effects, for instance, can overload power grids and damage orbiting satellites.
- Aspectacular
- Bsignificant
- Cbenign
- Dconsequential
- Einnocuous
- Fpalpable
C,E显示答案
以上解析由 考满分老师提供。