今年是改革开放________年。改革开放以来我们取得一切成绩和进步的根本原因是，开辟了中国特色社会主义道路，形成了中国特色社会主义理论体系。
30
Only when _____ to explain ____ the reason for this. [ ]
A. did he start; she realized
B. he started; did she realize
C. did he start; she had realized
D. he started; had she realized
肾阴虚经间期出血和阴虚血热所致的经期延长，治疗法则为滋阴清热止血，均选用两地汤合二至丸。
