无论被测物是高浓度或低浓度,实验室测定结果总是持续偏低,说明有
A.随机误差
B.过失误差
C.系统误差
D.偶然误差
E.误差来源无法判断
参考答案:C
有人认为:哲学是自己时代的精神上的精华,都是科学的世界观和方法论。对此你是如何认识的?
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大面积烧伤儿童,口渴、尿少,尿比重1.030,脉搏140次/分,神志淡漠,肢体冷,首要的处理应是
A.清创
B.给予吗啡止痛
C.给予强心剂
D.创面涂抗菌药物
E.静脉快速补液