抗结核作用强，对干酪样病灶中结核杆菌有效：
A．异烟肼B．对氨杨酸C．链霉素D．卡那霉素E．庆大霉素
参考答案：A
She had just finished her homework_____her mother asked her to practice playing the piano yesterday. [ ]
A. when
B. while
C. after
D. since
BTS312可支持最大（）的配置。
A、S12/12/12
B、S18/18/18
C、S24/24/24
D、S32/32/32
