Most parents who are generous are good parents, but some self-centered parents are also good parents. Yet all good parents share one characteristic: they are good listeners.
If all of the statements in the passage are true, which one of the following must also be true

A．All parents who are good listeners are good parents.

B．Some parents who are good listeners are not good parents.

C．Most parents who are good listeners are generous.

D．Some parents who are good listeners are self-centered.

E．(E) Fewer self-centered parents than generous parents are good listeners.

男性，58岁，患右侧腹股沟斜疝病史3年。今晨便后疝突出，不能回纳，局部疼痛，伴恶心，无呕吐6小时就诊。

手术发现肠管绞窄坏死，应采取的治疗是

A．坏死肠段切除术

B．坏死肠段切除，加疝囊高位结扎术

C．坏死肠段切除加疝修补术

D．坏死肠段切除吻合、上段肠造口术

E．坏死肠段外置