在有效抗生素治疗下,影响肺脓肿疗效的主要原因是:()
A.脓肿的不同部位
B.脓液引流不畅,痰液不易排出
C.细菌的不同种类
D.没有输血
E.没有长期卧床休息
参考答案:B
I _________ giraffes and elephants.[ ]
A. like
B. do
C. have
He told me that he arrived _______ Beijing _____ January 8th .
A.at, in
B.in, in
C.in, on
D.to, on