问答题
All of the dental instruments need to be______before the next patient is seen.
【参考答案】
[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......
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问答题
The battle is of great significance when viewed in the______of the progress of the war.
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单项选择题
Imagine my vexation when they said they would come to dinner and then didn't show.
A.enlightenment
B.astonishment
C.annoyance
D.contrariness
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