题目内容

飞行愉快用英语如何表达

A. Have a nice journey.
B. Take care of yourself.
C. nice to meet you.
D. Have a good flight.

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祝您旅途愉快如何翻译呢

A. Have a nice trip.
B. Have a pleasant trip.
C. Have a good flight.
D. I wish you a pleasant journey.

reception 的中文意思

A. 接受
B. 招待
C. 吧台
D. 合同

蜗杆传动相比齿轮传动的优点:1、;2、;3、;缺点: 。

简述阿基米德蜗杆的齿廓特点:端面齿廓为 ,轴面齿廓为 ,法面齿廓为 。

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