• 2022-06-28
    FCC的弗兰克不全位错的伯氏矢量是:
    A: [img=98x59]18032575abda656.png[/img]
    B: [img=103x57]18032575b3ebcb6.png[/img]
    C: [img=108x64]18032575bbe40f3.png[/img]
    D: [img=108x60]18032575c395632.png[/img]