下述抗菌药物口服后在脑脊液中浓度最高的为（）
A.土霉素
B.米诺环素
C.大观霉素
D.庆大霉素
E.氯霉素
参考答案：E
Why is Las Vegas so successful in attracting tourists
A．Because of gambling.
B．Because it is an alternative family destination.
C．Because the hotels are quite cheap.
D．Because people like the desert.
白质前连合
