搜题请搜索小程序“爱下问搜题”
问题 单项选择题

患儿6岁，有服不洁食物史，高热6h，呕吐2次，惊厥1次，7月入院。体温40℃，面色苍白，四肢冷，脉细速，脑膜刺激征阴性，今日未排大便，7h无尿。

此患儿最可能的诊断是

A．中毒性痢疾
B．暴发型流脑
C．流行性乙型脑炎
D．败血症
E．中毒性肺炎

答案

参考答案：A

解析：在夏秋季，对2～7岁小儿突然高热、伴有脑病或中毒性休克者应疑为本病。

选择题

某同学帮助水质检测站配制500 mL 0.5 mol/LNaOH溶液以备使用。其操作步骤如乙图所示，则甲图操作应在乙图中的　　　之间。

A．①与②

B．②与③　

C．③与④

D．④与⑤
查看答案
单项选择题

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.

（35）（）

A．attempted

B．managed

C．wanted

D．decided
查看答案