3. Cooperators can be _________.　　
A: very collaborative team members　　
B: very authoritative team leaders　　
C: team players who are not easy to get along well with　　
D: team leaders who always hinder the work of others
选项：

A:
A: very collaborative team members
B:
B: very authoritative team leaders
C:
C: team players who are not easy to get along well with
D:
D: team leaders who always hinder the work of others