由乙炔干管上接出的支管与用气设备之间，必须经过单独的岗位回火防止器。( ) 发布时间：2017-02-05 12:32 │ 来源：www.tikuol.com 题型：判断题 问题： 由乙炔干管上接出的支管与用气设备之间，必须经过单独的岗位回火防止器。( )
题型：判断题 根据对话内容，用方框中所给词的适当形式填空。 Family, too, do, five, and, farmer, like ( At an English corner) A: Hello! I'm Peter. B: Hello! I'm Liu Dong. Nice to meet you. A: Nice to meet you, 1__________ B: I'm from China. Where're you from? A: I'm from America. How many people are there in your 2__________? B: There' re 3__________. They' re my grandpa, grandma, father, mother and I. A: What do your parents 4__________? B: My father's a teacher 5__________ my mother works in a bookstore. A: Does your father 6__________ his job? B: Sure. He likes teaching very much. What about your parents? A: Both of them are 7__________. They have a big farm. 查看答案
题型：判断题 以下有关输液灭菌的表述，错误的是（）A.从配制到灭菌不超过4小时B.塑料输液袋可以采用109℃，45分钟灭菌C.为缩短灭菌时间，输液灭菌开始应迅速升温D.对于大容器要求F值大于8分钟，常用12分钟E.灭菌柜压力下降到零后才能缓慢打开灭菌柜门 查看答案