问题
单项选择题
铣削一单线螺旋槽工件,计算时,其导程()螺旋线的螺距。
A.大于
B.等于
C.小于
答案
参考答案:B
铣削一单线螺旋槽工件,计算时,其导程()螺旋线的螺距。
A.大于
B.等于
C.小于
参考答案:B
把下面的句子组合成小对话,只填序号。 | |
1. A: _____________________ | a. What's the fifth month? b. No, it's windy. c. May is the fifth. d. At twelve o'clock. e. What subject do you like? f. When is lunch? g. I like music very much. h. How tall is your mother? i. Is it rainy today? J. She is l.62 metres tall. |