Protective measures have been adopted in most hospitals since too much _______ to X-rays can cause skin burns, cancer or other damage to the body. ( 章节：1 难度：4)
- A、disclosure
- B、exhibition
- C、exposition
- D、exposure
正确答案:D
答案解析:有
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Protective measures have been adopted in most hospitals since too much _______ to X-rays can cause skin burns, cancer or other damage to the body. ( 章节：1 难度：4)
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