一次性输液器的环氧乙烷残留量应() A.≤1μg B.≤5μg C.≤10μg D. 发布时间:2017-08-21 06:22 │ 来源:www.tikuol.com 题型:单项选择题 问题: 一次性输液器的环氧乙烷残留量应()A.≤1μgB.≤5μgC.≤10μgD.≤20μgE.≤100μg
题型:单项选择题 单句改错。1. my name is betty and i'm from america. ____________________________.2. these are my friends. ____________________________.3. she can't play basketball. ____________________________.4. She is american and she's a secretary in china. ____________________________.5. these american teachers can speak chinese. ____________________________. 查看答案
题型:单项选择题 某3岁患儿,额、顶、颞及枕部突出膨大呈圆形,颈部静脉充盈,对比之下颜面很小,双目下视,巩膜外露。该患儿最可能的疾病是()A.呆小症B.佝偻病C.先天性梅毒D.Down病E.脑积水 查看答案