【单选题】3D s max中,启用“自动关键点”功能后,时间尺会变成( )色,拖曳时间线滑块可以控制动画的播放范围和关键帧等。
【单选题】景墙的( )可以完整地表达景墙的施工工艺及结构的主要内容。
【判断题】冷却系统的设计原则是快速冷却、均匀冷却、加工简单,并尽量保证模具的热平衡,使制品收缩均匀
【单选题】Economists differ in their views of the role of the government in promoting economic growth. At the very least, the government should
A.
lend support to the invisible hand by maintaining property rights and political stability.
B.
limit foreign investment to industries that don't already exist in the country.
C.
impose trade restrictions to protect the interests of domestic producers and consumers
D.
subsidize key industries
【判断题】()MR一200×100表示金属线槽,宽200mm,高100mm。
【单选题】关于冷却系统的设计原则中叙述错误的是( )
C.
壁厚较厚处冷却水道到型腔表面的距离应远一些。
【多选题】下列有关冷却系统的设计原则,描述正确的是:
【判断题】在《 Incoterms ® 2010 》的 11 种贸易术语中,买卖双方交接的单据,只可以是纸单据,不可以是电子单据。