题目内容
生产大批异形孔零件，较合适的加工方法为_____。
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单件小批生产中，铸铁齿轮上的孔，技术要求为Φ20H7、Ra1.6μm，采用下列加工方案：钻孔—扩孔—铰孔。
加工Φ20h7、Ra0.8μm的紫铜小轴外圆，采用下列加工方案：粗车—半精车—精车。
Word Forms.(用所给词的适当形式填空)1. Being a pet owner is a huge responsibility, but I believe you are enough to be one. (responsibility)2. Ourcame from the fact that we disagree about the message of the book. (disagree)3. Your explanation sounds true, so I think that you are telling the (truth)4. I am sorry for not seeing theof the problem, but I did not think it was veryserious . (serious)5. The card you sent to your friend will mean a lot to her. (meaning)6. TheI express about the new manager makes me doubtfulthat he will be good at his job. (doubt)7. Be in yourself, because people like those who have confidence(confident)8.You must look after your health if you want to stay . (healthy)9.The biographer wrote about the actor’s rise to fame and fortune. (fame)10. Tomorrow at the graduation ceremony, our class will finally . (graduate)
反刍动物进行化学性消化的主要器官是（ ）
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