【简答题】平面轮廓加工是生成沿轮廓线切削的两轴刀具轨迹,主要用于加工外形和铣槽,属于两轴或()加工方式。
【判断题】主谓一致指的是句子的谓语动词与其主语在人称上和数上必须保持一致。
【单选题】Part 2 task2 Conversation1, question3:
A.
The woman could probably repair it herself
B.
The mechanic's prices seem reasonable
C.
It probably won't cost her much repair
D.
American cars are cheaper to repair
【单选题】引起亚急性感染性心内膜炎最常见的微生物是
【单选题】The task won't seem so ________ if you break it down into small steps.
【单选题】对瓷砖的性质描述,以下哪一个是不正确的()