stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Science and scientists Flashcards | StudBud
Science and scientists
1 / 20
Beside contact lenses, Otto Wichterle is famous for inventing
A
polystyrene
B
nylon
C
Merkur toys
D
synthetic fibre called silon
Next
0
0
correct · 0:00