【简答题】《森林狂想曲》中出现了哪些乐器的声音?他们的音色是怎么样的呢?
【多选题】决定测量数据中可疑值的取舍常用的方法有( )。
【多选题】通过试验可测定变压器6个基本参数,可用空载实验测求参数有【 】。
【判断题】天然淡水的总碱度往往用碳酸盐碱度和氢氧根碱度之和表示。
【单选题】Shocking figures have shown that half of the animals in the world _________ since 1970 because of uncontrollable human activities.
【单选题】Shocking figures have shown that half of the animals in the world ________ since 1970 because of uncontrollable human activities.
【单选题】It was a _____story, and we all got_____. [ ]