【判断题】( )对于车削铝、镁合金的车刀,要防止切削刃不锋利而产生挤压摩擦,以至高温后发生燃烧。
【单选题】成熟期的企业如果不能成功进行蜕变的话,那么就会进入()。
【单选题】I don't study as _________ as Amy and always make mistakes in my homework. [ ]
【单选题】I don’t study as ______ as Amy and always make more mistakes in my homework.
【单选题】“自由之树若不用公民双手栽种,不用公民鲜血浇灌,不用公民的剑捍卫,它将不结果实。” 这句话和解放哪个国家有关?
【单选题】– You always make friends with those who are ______. Why? – Because I don’t want to be too bored.
【判断题】控制变压器与普通变压器的不同之处是效率很高