宪法和有关法律对选举人权利做了两个方面的规定:()和()。
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1.Helen is worried about food safety.
2. So far, the contaminated baby milk hasn't caused any deaths yet.
3. Food incidents occur not as often nowadays as before.
4. Food safety is an old problem.
5. Public confidence in the milk industry will be back soon.
口腔器械存放柜(架)或存放车,应多长时间进行清洁消毒,灭菌物品和消毒物品应分开放置,并有明显标识。()
A. 每日
B. 每周
C. 每月
D. 每季度
一次性纸塑及医用无纺布包装的无菌有效期为()
A. 7d
B. 4h
C. 30d
D. 180