脉络膜与巩膜相贴的最内层为一透明的薄膜,称玻璃膜。
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瞳孔括约肌的收缩可以使瞳孔放大。
A. 对
B. 错
As long as you keep on ______ hard, you'll get promoted sooner or later.
A. work
B. being working
C. worked
D. working
冲裁变形过程大致可分为弹性变形阶段、__________和__________。
排样时,工件之间以及工件与条料侧边之间留下的余料叫__________。