— Hello! Can I speak to the headmaster,

猩红热治疗应首选

A．病毒唑
B．青霉素
C．红霉素
D．链霉素
E．庆大霉素

Since the end of World War Ⅱ, teachers have found themselves under considerable pressure to abandon the long-standing ______ model, though it had been in general use in second language teaching since the late 18th century.

阿拉伯胶

A．分层
B．转相
C．酸败
D．絮凝
E．破裂

TRU的应用软件是由（）直接加载的。

A.SATT

B.BSC

C.DXU

D.OMT

通过锦江之星官网预订，房价比门市价至少优惠（）元。