In my opinion, obviously, night-time is when children can begin to learn to feel confident ______, without being dependent on anyone else.

A．by their own

B．on their own

C．with their own

D．to their own

患者男性，45岁。十年前外伤后曾静脉输血治疗，近期持续发热，咳嗽，咳痰，经治疗无明显好转，伴有全身不适，肌肉酸痛，可触及颈部、腹股沟部淋巴结肿大，皮肤黏膜出现紫红色"葡萄样"结节。

根据以上情况，考虑最可能的诊断为（）

A.病毒性感冒合并肺部感染

B.肺癌

C.皮肤癌

D.何杰金氏病

E.梅毒

F.艾滋病

G.流行性出血热