男性，35岁，突发畏寒、发热及右上腹胀痛。查体：体温39.5℃，无黄疸，右上腹压痛伴肌紧张，肝肋下4cm，肝区叩痛阳性。血WBC：16×10⁹/L。胸腹透视：右膈抬高，活动受限。腹部B超：肝右后叶直径8cm的液性暗区。

首先考虑诊断为

A．肝癌伴坏死、液化

B．细菌性肝脓肿

C．阿米巴性肝脓肿

D．急性化脓性胆管炎

E．肝包虫囊肿合并感染

Recently, I flew to Las Vegas to attend a meeting. As we were about to arrive, the pilot announced with apology that there would be a slight (16) before setting down. High desert winds had (17) the airport to close all but one runway. He said that we would be (18) the city for a few minutes waiting to (19) . We were also told to remain in our seats meanwhile with our seat belts fastened (20) there might be a few bumps(颠簸). Well, that few minutes turned into about four-five minutes, including a ride that would make a roller coaster(过山车) (21) by comparison. The movement was so fierce that several passengers felt (22) and had to use airsickness bags. As you might guess, that’ s not a good thing to have happen in a(n) (23) space because it only (24) to increase the discomfort of the situation.

About twenty minutes into the adventure, the entire airplane became very (25) There was now a sense of anxiety and fear that could be (26) noticed. Every passenger simply held on for dear life …except one. A (27) was having a good time！ With each bump of the (28) , he would let out a giggle (咯咯地笑)of delight. As I observed this, I (29) that he didn’t know he was supposed to be afraid and worried about his (30) . He neither thought about the past nor about the future. Those are what we gown--ups have learned from (31) . He was (32) the ride because he had not yet been taught to fear it. Having understood this, I took a deep breath and (33) back into my seat, pretending I was (34) on a roller coaster. I smiled for the rest of the flight. I even (35) to giggle once or twice, much to the chagrin(随恼) of the man sitting next to me holding the airsickness bag.

18（）

A.nearly 

B.finally 

C.really 

D.suddenly