用乙酰丙酮分光光度法测定空气中环氧氯丙烷时,样品测定与标准曲线绘制时的解吸、氧化及显色等条件应保持一致。
参考答案:对
A priority nursing diagnosis during the first 24 hours following an MI is
A.Ineffective cardiac tissue perfusion.
B.Risk for infection.
C.Deficient fluid volume.
D.Constipation.
地方性斑疹伤寒的传播途径是()
A.蚊虫叮咬
B.鼠蚤叮咬
C.血液传播
D.人虱叮咬
E.消化道传播