All made possible for China to succeed in carrying on its reforms and open-door policy.
A. what happened; it
B. what happened; that
C. that happened; it
D. that happened; that
网友回答
A. what happened; it
B. what happened; that
(答案→)C. that happened; it
D. that happened; that
解析:可联系答.案.网客服索取。