抗血清的保存方法() ["室温保存","4℃保存","-20℃保存","真空干燥","-40℃保存"]
胃脘隐痛痞胀,按之觉舒,食欲不振,食后胀甚。宜诊断为()。 ["寒饮停胃证","胃阳虚证","胃气虚证","寒滞胃肠证","胃阴虚证"]
变压器产生假油位的原因() ["变压器油枕的油室内有空气","油枕内的胶囊或隔膜损坏漏油","磁力油位表失灵","呼吸管堵塞"]
瘀血腰痛的特点是() ["腰部疼痛,重着而热","腰痛如刺,痛有定处","腰部冷痛重着","腰部隐痛","腰部酸软无力"]
局部抗感染的免疫球蛋白是() ["IgG","IgM","IgE","SIgA","IgD"]
虚拟现实