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名词解释:补体活化的经典途径(classical pathway)

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名词解释:补体活化的MBL途径(MBL pathway)

名词解释:补体活化的旁路途经(alternative pathway)

"A Midsummer Night's Dream" , written around __________, has been regarded as Shakespeare's first great mature comedy and remained one of his most popular works for the stage.

A. 1590-1594
B. 1595-1596
C. 1597-1599
D. 1600-1612

William Shaekspeare's comedies have ______ acts and the climax is always during the _____ act.

A. four; third
B. five; third
C. six; fourth
D. seven; third

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