20

0:14 1 Luidsprekere 1 Hoofstukke 5 Groepeamount in units (real)

Luidsprekere

Hoofstukke

  1. 0:00
    Hoofstuk 1: Number 21. 14s · Speaker 1

    Number 21. How many computers will your laboratory need? Probably around 50. Every other week. The keyboards were included.