开启高压钢瓶时，应缓慢开启，禁止将出口对向人。（） 发布时间：2021-02-21 21:29 │ 来源：www.tikuol.com 题型：判断题 问题： 开启高压钢瓶时，应缓慢开启，禁止将出口对向人。（）
题型：判断题 (二) 捷达公司是某商品流通企业的下属企业，主要从事采购业务，每年的采购金额高达数亿元。捷达公司在评审多家供应商绩效时，须遵循的原则有( )。A．持续进行B．实行淘汰制C．客观、公正D．价格优先 查看答案
题型：判断题 完型填空My friend Tony is an American 1 . He is ten years old. He lives 2 his family in China now. There are 3 people in his family; his mother Mrs. Green, his father Mr. Green and his little sister Amy. He has a white cat. 4 name is Betty. Look！Amy is playing 5 Betty. His father, Mr. Green, is watching TV. His mother is doing housework. What about Tony? He is doing 6 Chinese homework. He can't 7 Chinese well, but he likes Chinese very much. Tony's 8 works in a TV station. His father works in a school as an 9 teacher. Tony and his sister 10 to the same school.小题1:A．girlB．boyC．catD．dog小题2:A．onB．afterC．withD．in小题3:A．two B．threeC．fourD．five小题4:A．HisB．HerC．It'sD．Its小题5:A．toB．with C．fromD．at小题6:A．her B．it's C．aD．his小题7:A．say B．tell C．speakD．talk小题8:A．fatherB．motherC．sisterD．brother小题9:A．ChineseB．JapaneseC．EnglishD．Australian小题10:A．go B．goesC．goingD．to go 查看答案
题型：判断题 女性，21岁，体检时发现心脏杂音4年，发热2周。查体时心尖区收缩中、晚期吹风样杂音3/6级，并可闻及喀喇音，有杵状指，足底有无痛性小出血点。该病例考虑可能发生了（）A.脓毒血症B.风湿性心脏病伴亚急性感染性心内膜炎C.风湿活动期D.胶原性疾病E.二尖瓣 * * 肌功能失调 查看答案
题型：判断题 将10g不纯的氯化镁样品（杂质不溶于水），放入100g水中，充分搅拌，待样品中的氯化镁全部溶解后过滤（滤液损失不计），将所得滤液与63.3g氢氧化钠溶液恰好完全反应，生成5.8g白色沉淀．求：（1）样品中氯化镁的质量．（2）反应后所得溶液中溶质的质量分数． 查看答案