维生素D经肠道吸收时必须有()的存在 ["维生素A","盐酸","胆汁酸","胆盐","脂肪"]
生烧石灰有什么物理特征?
完全性心内膜垫缺损的超声检查所见,下列哪一项是错误的() ["原发孔型房间隔缺损","室间隔膜部缺损","二尖瓣裂","三尖瓣裂","主动脉瓣二叶化畸形"]
金黄色葡萄球菌肺炎的,X线特征性表现是() ["片状阴影","点状阴影","肺气囊","脓胸","空洞和液平面"]
苯二氮类药物主要作用的神经递质系统() ["γ-氨基丁酸","5-羟色胺","去甲肾上腺素","组氨酸","多巴胺"]
大红、天蓝,、白色、浅湖等颜色在套用油漆定额时,套()。