如图所示,给盛有少量水的试管(先用橡皮塞塞住)底部加热,问: 该实验包含哪些热现 发布时间:2017-08-04 22:32 │ 来源:www.tikuol.com 题型:问答题 问题: 如图所示,给盛有少量水的试管(先用橡皮塞塞住)底部加热,问:该实验包含哪些热现象?能量如何转化?在现实中有何应用?
题型:问答题 检测一批糕点食品的微生物指标,请你选择检测国家标准。培养基的制备和质量控制规定标准是()A.GB/T4789.28-2010B.GB/T4789.1-2010C.GB/T4789.2-2010D.GB/T4789.8-2010E.GB/T4789.35-2010 查看答案
题型:问答题 It was generally believed that the show was not as successful as expected, but ________, I think it was a great success. [ ]A. personally B. directlyC. publicly D. secretly 查看答案