Middle school students should learn from real heroes, Zhai Zhigang and Nie Haisheng,and try to make contributions to our country in the future．
A. for example
B. such as
C. for instance
D. namely
网友回答
A. for example
(答案→)B. such as
C. for instance
D. namely
解析：可联系答.案.网客服索取。