按照《母婴保健法》规定，必须经本人同意并签字，本人无行为能力的，应当经其监护人同意并签字的手术或治疗项目是（）

A.产前检查、产前诊断

B.产前检查、终止妊娠

C.终止妊娠、结扎

D.产前诊断、终止妊娠

E.产前诊断、结扎

___, I think, and the problems could be settled.

A．If you double your efforts

B．So long as you keep up your spirits

C．Making greater efforts

D．A bit more efforts