除去病毒的蛋白质外壳可用() ["乙醇或甲醛","丙酮或三氯化碳","胰蛋白酶","透明质酸酶","10%福尔马林固定或微火加热固定","乙醚和丙酮"]
Φ273mm钻杆建议报废尺寸为()mm。 ["238","248","258","268"]
汽车的布置形式是指发动机、驱动桥和车身(或驾驶室)的相互关系和布置特点,下面()不是乘用车的布置形式。 ["发动机前置前轮驱动","发动机前置后轮驱动","发动机后置前轮驱动","发动机后置后轮驱动"]
蛋白质类抗原的固定() ["乙醇或甲醛","丙酮或三氯化碳","胰蛋白酶","透明质酸酶","10%福尔马林固定或微火加热固定","乙醚和丙酮"]
妊娠合并甲状腺危象的处理不包括下列哪项措施() ["物理或药物降温,必要时人工冬眠","静脉应用碘化钠或口服复方碘溶液","病情稳定后以经阴分娩为宜","普萘洛尔(心得安)降低心率","丙硫氧嘧啶加倍口服"]
试述分析、研究线索型情报的意义?