__________ English has changed a lot over time and __________ English spoken between about AD 450 and 1150 was quite different.

A．/; the

B．/; /

C．The; /

D．The; the

关于胸壁结核的临床表现，下列哪项是错误的

A．患者常有明显的结核中毒症状

B．胸壁脓肿多为热脓肿

C．皮下溃破形成经久不愈的溃疡

D．可形成曲折分叉多的窦道

E．脓液黄白色稀薄，内含干酪样物质