单项选择题
A.106±1mm B.116±1mm C.126±1mm D.136±1mm
A.偏大B.偏小C.一样D.不一定
A.直径x高=100mmx100mm B.直径x高=150mmx150mm C.直径x高=50mmx50mm D.直径x高=200mmx200mm