老年患者宜选用的杀菌药物是
A. 头孢菌素类
B. 氨基糖苷类
C. 万古霉素
D. 去甲万古霉素
E. 肝素
The school authority () against students' smoking both in the classrooms and at home.
A. resolved
B. determined
C. banned
D. prohibited
This village which is surrounded by mountains is only () by river, and it is obvious that the transportation is inconvenient.
A. accessible
B. attainable
C. available
D. achievable
We shall provide such insurance at your cost.()
A. We shall pay for the insurance for you.
B. You shall pay for the insurance for yourself.
C. Both of us shall pay for the insurance.
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