题目内容
老年患者宜选用的杀菌药物是
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The school authority () against students' smoking both in the classrooms and at home.
This village which is surrounded by mountains is only () by river, and it is obvious that the transportation is inconvenient.
We shall provide such insurance at your cost.()
To be ______ I couldn't understand what he was getting at. If you wanted to know you'd better ask someone else.
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