皮皮学，免费搜题
登录
搜题
【单选题】
螺纹的导程 Ph和螺距 P 的关系是( )(n是螺纹的线数)。 答案A.
P = nPh
B.
Ph = nP
C.
P = Ph
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】信息社会的概念。
【简答题】VII. 书面表达,按照所提供的节日信息,选择合适的信息填写明信片 : Thanksgiving Day in the US Thanksgiving Day is an important festival in the United Sates. It is a time to give thanks for a good harvest. At present, it is celebrat...
【简答题】根据首字母或中文提示完成单词，使句意完整。 1. I don't know the a__________ to the question. It's a difficult question. 2. He is not tall e__________ to reach the apples on the tree. 3. C__________ Day is on June 1st. 4. W...
【简答题】信息社会有哪些特征?
【简答题】请把下列句子按正确顺序排列。 ( ) Wow! So many of them. ( ) Yes, I know. They are big potatoes. ( ) Do you know those things? Are they potatoes? ( ) Look! This farm is so big. Are they cucumbers? ( ...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
