什么是研磨?试述研磨的工作原理?
参考答案:
研磨是研削工具对工件的加工而进行的程序,其工作原理靠升降台右侧的手柄来控制。
单词拼写(本大题共10分,每小题1分)
(A) 根据句意,用括号内所给单词的适当形式填空
小题1:There is no need to worry. They can look after_______(they).
小题2:The pop star appeared after about ten _________(hour) flying.
小题3:In China , primary school has more __________(woman) teachers.
小题4:They shook hands with each other_______(close) as soon as they met.
小题5:Although I failed eight times, my mother encouraged me to have a _____(nine) try.
(B) 根据句意和汉语注释,写出单词的正确形式
小题6:He went to Moscow to have _________(进一步的) study.
小题7:It will be a good ______(选择) to make a list of all the homework you have to do.
小题8: Please put on the ________(干的) clothes , or you’ll catch a cold.
小题9: Were the young men waiting at the door all________(推销员)?
小题10: In China, more and more people are getting better and better______(医疗) care.
粤菜的代表名菜有()。
A.柠汁煎鸭脯
B.百花清汤肚
C.糖醋石斑鱼
D.金龙乳猪