手工铰削过程中,如果铰刀被切屑卡住时,正确的操作是()。
A、猛力反转铰刀
B、轻轻反转铰刀
C、仔细退出铰刀,消除切屑
D、顺逆向来回转动铰刀
参考答案:C
把下面的音节补充完整。
ù ú iǔ ùn
触 徐 扭 润
m w d b
玫 惋 达 笨
— His brother is an army man.
— I heard that he got an increase in ______ recently. [ ]
A. salary
B. wages
C. pay
D. money