颈静脉角是指哪两个静脉所形成的夹角()。 ["颈外静脉和锁骨下静脉","面前静脉和锁骨下静脉","下颌后静脉和锁骨下静脉","颈内静脉和锁骨下静脉","颈浅静脉和锁骨下静脉"]
动物出现黑斑病甘薯毒素中毒,是因为饲料中含有() ["长喙壳菌和茄病镰刀菌","硫葡萄糖苷","大量游离棉酚","生氰糖苷","硫胺素酶"]
临床用药实践表明,聚氯乙烯(PVC)为材质的一次性输液器可吸附的药物有() ["紫杉醇","氯硝西泮","硝酸甘油","硝酸异山梨酯","单硝酸异山梨酯"]
患儿,6个月。母乳喂养,腹泻已两个半月,大便每日6~7次,便中含有奶瓣,曾服用妈咪爱无效。查体:神志清,体重6.3kg,化验:大便偶见脂肪滴。应首先考虑的诊断是() ["生理性腹泻","大肠杆菌性肠炎","霉菌性肠炎","病毒性肠炎","过敏性肠炎"]
下列药品中,应该避光制备、贮存的是() ["异丙嗪","左旋多巴","水杨酸钠","头孢菌素","磺胺嘧啶钠"]
抒情话语有哪些独特属性?