机器具有实物组合、确定的运动形式和代替工人（）三个特征。

现在是9时3分，再过17分钟就要下课了，你说说这节课是什么时候下课？

关于MS和Devic病的横贯性脊髓炎的叙述错误的是（）

A.表现为脊髓急性进展性炎症性脱髓鞘病变

B.多数情况是MS的表现，呈单相型或慢性多相复发型

C.临床常见的脊髓体征是不对称或不完全性的，呈播散性脊髓炎表现，因此横贯性一词不尽精确

D.其特征是快速进展的下肢轻瘫、双侧Babinski征、躯干部感觉平面和括约肌功能障碍等

E.单相病程患者较常伴有Lhermitte征、阵发性强直性痉挛和神经根痛

Windows NT Server支持网络驱动接口NDIS与 【4】 允许用户同时使用不同的网络协议。

深衣与胡服的区别。

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