填空题

Any frequency close to 30Hz will interfere with cues that keep our biological cycles properly timed because the frequecies are close to the ______ of man.

【参考答案】

natural brain rhythms
<上一题 目录 下一题>
热门 试题

填空题
The probable safe level for constant exposure to electromagnetic radiation is 1 milligauss both for adults and children.
填空题
Based on many studies, we can come to the conclusion that exposure to magnetic fields will contribute to the growing incidences of certain site-specific cancer.
相关试题