水泥凝结时间的待测试件应放置的养护箱的温度和湿度要求为()
A.20±2℃,≥90%
B.20±1℃,≥95%
C.20±1℃,≥90%
D.20±2℃,≥95%
参考答案:C
凡发生医疗事故或事件,临床诊断不能明确死亡原因的,病人死亡后对其进行尸解的期限要求是()
A.24小时内
B.48小时内
C.15日内
D.30日内
E.45日
If you let challenges and difficulties benefit depress you, much more can be accomplished than you thought possible.
A.more than
B.rather than
C.less than
D.other than