制定工艺时首先要搞清零件的功用、结构特点，各个表面的精度和粗糙度要求各主要面间的尺寸联系以及零件的材料和热处理要求等。
参考答案：对
单词分类。
A. frustrating B. do more exercises C. listening to tapes D. excited
E. boring F. asking questions G. bored H. watch movies
I. frustrated J. getting an English tutor
1. The game is so _____ that I can't stand it.
2. After having a Chinese class, I felt _____.
3. I'd like to learn English by _____.
4. Do you think learning by surfing the Internet is good or bad? Why?
__________________________________________________
记账凭证是由( )编制的。
A．出纳人员
B．经办人员
C．会计人员
D．经办单位
