stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Consumption quiz Flashcards | StudBud
Consumption quiz
1 / 30
The number of smart phone at the end of 2012 was
A
1 billion
B
870 million
C
1.7 billion
D
2.4 billion
Next
0
0
correct · 0:00
