【简答题】某标准直齿圆柱齿轮,已知齿距 p =12.56mm ,齿数 z =2 0 ,正常齿制。求该齿轮的分度圆直径 d 、齿顶圆直径 d a 、 、齿根圆直径 d f 、基圆直径 d b 、 、齿高 h 及齿厚 s 。 ( cos20 o≈ 0.9 4)
【多选题】为什么说塑造品牌的全球化形象,有利于品牌更好的盘踞国内市场:
C.
本土品牌通过全球化形象的塑造,能够提高消费者对产品的购买意向
D.
随着全球化的发展,具有全球化形象的品牌对消费者来说愈发具有吸引力
【简答题】某标准直齿圆柱齿轮,已知齿距 p =12.56mm ,齿数 z =2 0 ,正常齿制。求该齿轮的分度圆直径 d 、齿顶圆直径 d a 、 、齿根圆直径 d f 、基圆直径 d b 、 、齿高 h 及齿厚 s 。 ( cos20 o≈ 0.9 4) 解答:
【单选题】How can we acquire wisdom in our private lives?
A.
We can develop wisdom by dedicating ourselves to heroic deeds.
B.
We can learn acting smartly by not taking on more than we can cope with.
C.
We can instill fragment of wisdom by eliminating people’s self-centeredness.
【单选题】According to the author, all of the following can truly be said about wisdom EXCEPT that ______.
A.
wisdom may be thought of as a special form. of abilities and knowledge completely developed with life experience.
B.
wisdom may still grow even when the process of mental aging started.
C.
wisdom is superior in importance to mental skills such as inductive reasoning and spatial skills.
D.
wisdom makes up an important part of brain power.
【单选题】The word 'cunning' probably means ______.
【判断题】与离心风机相比,轴流风机产生的压头小,一般用于不需要设置管道、或管路阻力较小的场合。