【单选题】Who is Jaron Lanier?
A.
He is a computer scientist
B.
He coined the term virtual reality
C.
He is a multimedia artist
【判断题】用圆柱铣刀加工平面,顺铣时刀齿从上向下切削,刀齿的切削厚度从最大逐渐减小到零。
【判断题】用圆柱铣刀加工平面,顺铣时刀齿从上面向下切削,刀齿的切削厚度从最大逐渐减少到零。
【单选题】大青叶的生药拉丁名为
D.
Digitalis Purpureae Folium
【单选题】犯罪行为有连续或者继续状态的,追诉期限从()之日
【单选题】The father was not happy when the writer was going to Israel because_____.
D.
he wanted the writer to go to England
【判断题】用圆柱铣刀加工平面,顺铣时,刀齿的切削厚度由零到最大,而垂直切削分力 Fv 向下,所以工件的表面质量好。