(来学网)薄片的厚度为
  • A.
    (来学网)0.5mm
  • B.
    (来学网)1~2mm
  • C.
    (来学网)2~4mm
  • D.
    (来学网)4~8mm
  • E.
    (来学网)10~15mm
正确答案:
B