狭錾切削部分刃磨时,其两个侧面从切削刃起向柄部逐渐(),其作用是在錾削沟槽时,錾子的两侧不会被(),以致增加錾削阻力。
参考答案:狭小、工件卡住
passion, people won't have the motivation or the joy necessary for creative thinking. [ ]
A. For
B. Without
C. Beneath
D. By
凡公务员本人自愿申请辞职的,都应当予以批准。