填空题

The probable safe level for constant exposure to electromagnetic radiation is 1 milligauss both for adults and children.

【参考答案】

N

<上一题目录下一题>

热门试题

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.

填空题

The harm the electromagnetic radiation does to people’s health is as great as or even greater than that cigarette smoking does.