刀具磨损的原因有哪几种？
参考答案：
刀具磨损的原因有磨粒磨损、粘结磨损、扩散磨损、相变磨损、氧化磨损、其它磨损。
根据汉语意思及首字母提示完成下列句子。
小题1:Don’t make so much n________, I’m reading now.
小题2:If I had a million dollars, I’d give it to m_________ research.
小题3:They are both _________ （成员）of the school soccer club.
小题4:To our great ________ （惊讶），Tom failed to pass the math exam..
小题5:To watch the TV program, Jack finished his homework ________（迅速地）.
什么叫译码器？
