Some properties of aluminium are listed.
1 It has mechanical strength.
2 It is resistant to corrosion.
3 It has a low density.
4 It conducts heat.
Which three properties make aluminium useful for making the bodies of aircraft?
1, 2 and 3
2 )
1, 2 and 4
3 )
1, 3 and 4
4 )
2, 3 and 4
تحلیل ویدئویی تست
منتظریم اولین نفر تحلیلش کنه!