2. 外语
  3. All of the dental instruments need to be______before the next patient is seen.

All of the dental instruments need to be______before the next patient is seen.

admin2017-03-25  80
问题 All of the dental instruments need to be______before the next patient is seen.
选项 A、heated
B、scalded
C、sterilized
D、burned
答案C
解析 本题空格处是说所有的牙科器具都需要消毒。C项sterilized“消毒的”符合题意。其他三项“heated加热；scalded烫洗；burned烧”都不正确。
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