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胃十二指肠溃疡穿孔()E.

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渠道纵断面测量可分段进行,每段高差闭合差不应大于()mm。

A.goodB.realisticC.dramaticD.developed

A. good
B. realistic
C. dramatic
D. developed

A.affordableB.expensiveC.countableD.exciting

A. affordable
B. expensive
C. countable
D. exciting

A.thatB.whatC.whichD.where

A. that
B. what
C. which
D. where

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