男，52岁。因咳嗽、痰中带血1个月入院。患者1个月前因受凉后出现咳嗽、咳痰症状，痰为白色泡沫痰，量较少。剧烈咳嗽后出现痰中带血，在当地医院给予抗感染及对症治疗，痰中带血症状消失，但咳嗽症状改善不明显。体检：T36．6℃、P79次／分、BP140／85mmHg。肥胖体型，双侧锁骨上淋巴结不大，气管居中，左肺呼吸音正常，右上肺呼吸音稍低。

提示：胸部正侧位片示：右上肺不张、右肺门块影，左肺正常。目前的初步诊断是（）

A.肺脓肿

B.肺恶性肿瘤

C.肺良性肿瘤

D.肺结核瘤

E.肺炎性假瘤

F.肺囊肿

Although the bulk of industry resources and energies have focused on developing the fastest (71) or slickest (72) , more and more mindshare is turning to the evolution of the computer interface. Advancements in the areas of input devices, (73) processing and vitual reality could lead to fundamental changes in the way human and computer interact. The technological battlefield of the future will be adding layers between the user and the raw machine to make the (74) as invisible as possible. (75) crepresents the next evolutionary step for the interface.

A．explicit

B．voice

C．implicit

D．special