ISRn.信息存储和检索(综合的辅助要求)isv.是（be的第三人称单数一般现在时）ischiopubic plate坐耻板Is this real?Is Amended To Add改为增补iscocitrate lyase异柠檬酸酶Is it broken?Is this road?Isimetric drawing正等轴测图Ischaemum barbatumn.粗毛鸭嘴草Ischemic enteritis缺血性小肠炎Is it curable?