急性失血时血象最早的变化是() ["血小板减少","血红蛋白减少","白细胞升高","白细胞减少","血小板减少增高"]
C18:0是() ["单不饱和脂肪酸","多不饱和脂肪酸","饱和脂肪酸","类脂","固醇"]
结核菌素试验阳性反应有何意义?
下列疾病外周血嗜酸性粒细胞增多的是() ["结核病","伤寒","严重细菌感染","寄生虫病","风湿热"]
评价食物蛋白质营养价值的公式×100表示的是() ["蛋白质的消化率","蛋白质的功效比值","蛋白质的净利用率","蛋白质的生物价","蛋白质的吸收率"]
如何判断结核菌素试验结果?