专四
单选题回答第42空。
A．so
B．but
C．still
D．yet
参考答案：A进入在线模考
【解析】本句的前半部分“没有证据显示抗生素或抗病毒药物能治疗非典”和后半部分“医生采用支持性治疗”是因果关系．故选A。
【点睛】句意关系题。8、D两项表转折，C项意为“仍然”且不是连词，因此均应排除。
【点睛】句意关系题。8、D两项表转折，C项意为“仍然”且不是连词，因此均应排除。
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