暴露的定义是什么？

经营业绩分析指标不包括( )。

A．与行业比较的销售增长率

B．市场占有率

C．主营业务收入占销售收入总额的比重

D．利润增长率

我国乡村人口问题的现状表现为()。

A．人口基数大增长速度快

B．人口年龄结构逐渐老化

C．分布不均衡

D．人口素质差

E．劳动力大量过剩

注册建筑师证书和专用章使用效力，下列各项为正确选项的是______。

A．一级注册建筑师证书和专用章全国通用

B．二级注册建筑师证书和专用章本省通用

C．二级注册建筑师到外省执业需在本省开具出省证明

D．二级注册建筑师到外省执业需在当地重新办理注册手续

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

若一大国对进口征收关税，可能导致贸易条件的（）和贸易量的（）。

A、不变；不变

B、改善；不变

C、恶化；增加

D、改善；减少