YJ19供料系统由于烟梗和烟丝（）的不同，因此，可利用其悬浮速度不同而进行风分。A.

非集中控制型消防应急照明和疏散指示系统功能调试的内容有（）。

A.分别操作自带电源型系统的手动转换装置和模拟消防联动自带电源型系统的应急照明配电箱，系统应转入应急工作状态

B.分别操作集中应急电源的手动转换控制装置和模拟消防联动集中电源型系统的集中应急电源或应急照明分配电装置，系统应转入应急工作状态

C.分别操作应急照明分配电装置的转换开关和模拟消防联动集中电源型系统的应急照明分配电装置，应急照明分配电装置供电的所有消防应急灯具应转入应急工作状态

D.模拟消防联动控制信号，应急照明控制器应控制相关消防应急灯具转入应急工作状态.

E.手动控制消防应急照明控制器，使消防应急灯具转入应急工作状态，相关消防应急灯具应转入应急工作状态

传说老子遇到一位年逾百岁的老翁，老翁得意地说：“我从年少到现在，一直是游手好闲地轻松度日。我的同龄人辛苦一生却早已作古。现在我是否可以嘲笑他们忙碌一生，只是给自己换来一个早逝的结果呢”老子拿了一块砖头和一块石头放在老翁面前说：“如果只能选择其一．您是要砖头还是要石头呢”老翁选择了砖头，并指着石头说：“这石头没棱没角，要它何用”老子又问老翁：“是石头寿命长呢还是砖头寿命长”老翁说：“当然是石头了。”老子笑着说：“石头寿命长，您却不选择它；砖头寿命短，您却选择了它，不过是有用和没用罢了，天地万物莫不如此。”老翁顿然大惭。
这个故事给我们的启示是( )。

A．个体的生命终会腐朽，但精神却可以得到永存
B．个人的价值大小取决于其为社会创造的财富大小
C．生命的意义不在于长短，而在于对社会的贡献
D．人除了追求生命的长度外，也要追求生命的质量

胸部拍片，不符合肺气肿表现的是（）

A.两肺透亮度增加

B.肋间隙增宽

C.双肺体积增大

D.膈肌上升

E.纵膈细长

1861年4月，曾国藩的重要幕僚赵烈文看到某书籍刻印本后在日记中写道：“其中所言，颇有见识，……皆是效法西人所为，……观此一书，则贼中不为无人。”该书籍应是（）

A.《海国图志》

B.《天朝田亩制度》

C.《瀛环志略》

D.《资政新篇》

We once had a poster competition in our fifth grade art class.

"You could win prizes," our teacher told us as she wrote the poster information on the blackboard. She passed out sheets of construction paper while continuing. "The first prize is ten dollars. You just have to make sure that the words on the blackboard appear somewhere on your poster. "

We studied the board critically. Some of us looked with one eye and held up certain colors against the blackboard rocking the sheets to the right or left while we conjured up our designs. Others twisted their hair around their fingers or chewed their erasers while deep in thought. We had plans for that ten-dollar grand prize, each and every one of us. I’m going to spend mine on candies one hopeful would announce while another practiced looking serious wise and rich.

Everyone in the class made a poster. Some of us used parts of those fancy paper napkins, while others used nothing but colored construction paper. Some of us used big designs and some of us preferred to gather our art tidily down in one comer of our poster and let the space draw the viewer’s attention to it. Some of us would wander past the good students’ desks and then return to our own projects with a growing sense of hopelessness. It was yet another grown up trick of the sort they seemed especially fond of making all of us believe we had a fair chance and then always—always—rewarding the same old winners.

I believe I drew a sailboat, but I can’t say that with any certainty. I made it. I admired it. I determined it to be the very best of all of the posters I had seen and then I turned it in.

Minutes passed.

No one came along to give me the grand prize and then someone distracted me and I probably never would have thought about that poster again.

I was still sitting at my desk thinking, what poster When the teacher gave me an envelope with a ten-dollar bill in it and everyone in the class applauded for me.

After seeing the good students’designs, some students （）.

A．loved their own designs more

B．thought they had a fair chance

C．put their own designs in a comer

D．thought they would not win the prize