【单选题】偏差是某一实际尺寸(或极限尺寸)减其基本尺寸所得的____
【单选题】How 3D printing works shows that______.
A.
small items can be made in the corner of an office
B.
it is currently the preserve of hobbyists in academic and industrial niche
C.
additive manufacturing is too complicated to be popularized at present
D.
the blue print of 3D printing has to be designed three-dimensionally
【单选题】— 3D printing is one of the latest technological innovations. — ____ Maybe its functions are questionable.
【判断题】单人院前心肺复苏的步骤为激活急救医疗服务体系系统(呼救)-取出自动除颤仪(如果有自动除颤仪)-对患者进行心肺复苏-除颤(如果可能)。
【单选题】She's not very optimistic ____ the development of 3D printing.
【单选题】尺寸偏差是指 尺寸减其基本尺寸的代数差。