2023-06-16
斜齿轮传动相对直齿轮传动有哪些特点（）。
A.承载能力低
B.传动冲击大
C.噪音大
D.产生轴向力
D
Beijing Opera was first seen in Shen News during the second year of reign.
2024-01-13 竞赛及其他题库
In the Zhou Dynasty， the system of rites and music had two principles：one principle specified the social hierarchy.The other principle specified the songs and dances accompanying the rites.
Facial makeup is used to paint colors on one's face to indicate the disposition， quality， role， and fate.
The Han Dynasty beheld two famous musicians， Li Yannian， who sang excellently and composed new songs， and Xue Tan， who was a musical theoretician.
After the Sui united China， the music and dances were sorted out and categorized into "nine divisions of music".
具有敛肺滋肾、生津敛汗、涩精止泻、宁心安神功效的药物是（）
上能敛肺气.下能滋肾阴的药物是
有关浅海陆棚相的沉积特征有
根据支撑机理，重力流可划分为：
形成重力流沉积一般应具有一定的水深和触发机制、足够大的坡度和密度等条件。
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