由（）生成三维钣金零件，必须先设定钣金的样式。 ["二围钣金零件","三维草图","二维草图","三维零件"]
油浆阻垢剂用（）稀释 ["水","柴油","原料","汽油"]
急性白血病患者红细胞输注指征是（）。 ["Hb＜60g/L","Hb＜70g/L","Hb＜80g/L","Hb＜50g/L","Hb＜100g/L"]
加入的金属钝化剂的量由反应生成的（）量来控制 ["甲烷","氢气","气态烃","硫化氢"]
输血对肾脏移植物起保护作用的机制不包括（）。 ["非特异性抑制细胞","克隆缺失","单核巨噬系统封闭","抗独特性抗体","Treg细胞介导的免疫调节作用"]
同一线圈不同点之间的绝缘为（）。
