怎样计算空气压缩机电动机的功率？

阅读短文，完成下列句子。

        The 12th China Music Chart Awards were handed out on Saturday, with stars from China's mainland,

Taiwan and Hong Kong appearing and putting the spotlight on Beijing.

        A total of 17 awards were presented, among which four awards were given to original (原创) musicians. 

        Taiwan pop singer Jay Chow and Stefanie Sun from Singapore remain the most popular, taking Most

Popular Male Singer and Most Popular Female Singer.

        Their mainland counterparts are both first-time winners. Sha Baoliang was selected as Most Popular Male

Singer. And the Most Popular Female Singer Award went to veteran singer Sun Yue.

        Age of Water and Wood, A duet band by two former students from Tsinghua University, won Best Group.

Widely acknowledged for their talent in singing and composition, the two band members now pay more attention

to their appearance. Their new image took fans by surprise. 

        Taiwan pop group S.H.E was awarded Best Group in the Taiwan and Hong Kong Region. F.I.R, also from

Taiwan, was chosen as Most Popular Band.

         Best Records went to Xu Wei from the Chinese mainland, known for their campus songs. The duo found

their surprise success from their first electronic album "I Like Tricky Music," released in early 2004.

         The earliest event of its kind on the Chinese mainland, the China Music Chart Awards was set up in 1993

with an aim to promote (提高)original Chinese music.

         It is organized by the Chinese National Satellite Music Radio Associated Network made up of several

Chinese music radio stations.

1. At the 12th China Music Chart Awards Presentation, ________ were handed out including ______.

2.Jay Chow and Stefanie Sun Won the two awards of ____________and ________________.

3. The duet band (二重声乐队) Age of water and Wood formed by two former students from ______________, earned the award of __________________________.

4. Best Records Award went to went to Xu Wei from _______, who is famous for_________.

5.The China Music Chart Awards was set up in 1993 to__________________________.

4和10的最小公倍数的倒数是______．

如图所示，M、N两个滑轮组，在相同时间内，用同样大小的力F₁和F₂，把物重相等的G₁和G₂提升相同的高度，如果用η₁和η₂表示两装置的机械效率，力F₁和F₂所做功的功率分别表示为P₁和P₂，（每个滑轮等重）则

A．η₁＞η₂，P₁＞P₂

B．η₁＜η₂，P₁＜P₂

C．η₁＞η₂，P₁＜P₂

D．η₁=η₂，P₁=P₂

中国民族火柴业兴起于清末，发展于民国。这期间内忧重重，外患频频，民族火柴业在夹缝中脱颖而出，顽强成长。阅读下列材料（12分）

材料一  一组民族火柴业留下的商标——火花

材料二  资产阶级黄金时代的乌托邦在现代中国经济思想发展中占有特殊地位，它反映了那个时代转瞬即逝的现实：随着第一次世界大战而产生的，但却是没有前途的经济奇迹。                       ——摘自《剑桥中华民国史》

结合所学知识请回答：

（1）观察材料一中的火花图案，思考中国民族工业发展的背景和动力是什么？（2分）

（2）材料二中提到的“黄金时代”是指什么时间？（1分）说明“黄金时代”产生的原因。（4分）

（３）那个时代“转瞬即逝”的直接原因是什么？（1分）为什么说它是一个“没有前途的经济奇迹”？（2分）

患儿男，11岁，双眼红、眼胀不适4天。4天前因"结膜炎"开始滴用妥布霉素地塞米松滴眼液，2小时1次。Vou0．7，Tou45mmHg，双眼结膜轻度充血，角膜轻水肿，前房深，房水清，晶状体透明，视盘色红，边界清。最可能的诊断是（）

A.原发性开角型青光眼

B.青少年型青光眼

C.糖皮质激素性青光眼

D.糖皮质激素性高眼压症

E.青光眼一睫状体炎综合征