The final exam is coming. Our teachers tell us _______ time. [ ]

A. not to waste

B. not waste

C. don't waste

女，33岁。G2P1，白带增多伴有恶臭，CA125阳性，最有效的治疗（）

A.放疗

B.化疗

C.孕激素治疗

D.抗雌激素治疗

E.根治性子宫切除术