【单选题】患儿,岁,2 周前发热,在外院诊断为扁桃体炎。近 3 天尿量减少,尿液为浓茶色,双眼睑水肿,半小时前突然头痛、呕吐,视物模糊,应首先采取哪项护理措施( )
【多选题】继代培养玻璃化现象预防措施有哪些( )
A.
增加培养基中的溶质水平,以降低培养基的水势;
C.
增加光照;增加容器通风,最好进行C02施肥,这对减轻试管苗玻璃化的现象有明显的作用;
D.
降低培养温度,进行变温培养,有助于减轻试管苗玻璃化的现象发生;
E.
降低培养基中细胞分裂素含量,可以考虑加入适量脱落酸。
【简答题】完形填空 David was a doctor. He spent 1 time in playing when he was in the medical college. Of course, he learned nothing. Later on he tried to find a 2 in the cities, but he failed. He 3 return to his ho...
【简答题】One day, many years ago, when I was working as a psychologist(心理学家) in England, David was brought into my office. His face was pale(苍白的)and he looked at his own feet. David lost his father when he was...
【单选题】有甲、乙、丙、丁四人,均申报买入X股票,申报价格和时间如下:甲的买入价10.75元,时间为13:40;乙的买人价l0.40元,时间为13:25;丙的买入价10.70元,时间为13:25;丁的买入价l0.75元,时间为13:38。那么他们交易的优先顺序应为( )。
【判断题】多模光纤的工作波长为短波长850nm、长波长1300nm。
【单选题】David was responsible and hardworking, _____ he was promoted from a clerk to a manager.