136．This is an illness that can result in total blindness left untreated． A after B if C．——青夏教育精英家教网—

摘要：136．This is an illness that can result in total blindness left untreated． A after B if C．since D．Unless

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This is an illness that can result in total blindness ________ left untreated．

A．if

B．after

C．since

D．because

This is an illness that can result in total blindness _________ left untreated．

A．after

B．if

C．since

D．unless

This is an illness that can result in total blindness ___________ left untreated.

[　　]

This is an illness that can result in total blindness ________ left untreated.

[　　]

陕西省长安一中2011届高三第五次质量检测英语

This is an illness that can result in total blindness ___ left untreated．

A． after B． if C． since D． unless

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