16
10
3
1
23. Why was Glaser’s logo NOT copyrighted?
A In order to encourage people to use the logo.
B Because copyrighting was time-consuming.
C Because he was indifferent to copyrighting.
D In order to reduce the cost of advertising.
24. What does the word “stack” in line 20 mean?
A match.
B arrange.
C squeeze.
D change.