气性坏疽最关键的治疗措施是
A．高压氧疗法
B．补充足够的营养
C．输血、输液
D．大剂量青霉素
E．紧急手术处理
参考答案：E
Clearly, in a system ______ every decision is made on the basis of tradition alone, it may be difficult
to achieve progress. [ ]
A. that
B. when
C. where
D. which
