如图所示，要使金属环C向线圈A运动，导线AB在金属导轨上应（ ） A．向右作减速

阅读理解。

The Games comes to China     China hosted its first Olympic Games from August 8 to 24.Move than 10,000 athletes were at the Games. They broke 38 world records. China won the most gold medals with 51.                        New man for the USE     The man in the picture is 47-year -old Barack Obama. This year he was elected President of America. He will also be the country's first black president.                       China's Space Walk      Zhai Zhigang and his two partners got a warm welcome after leaving the Shenzhou VII spacecraft. (宇宙飞船) On September 27, Zhai finished Chin a's first space walk. China has become the third country to walk in space, after the US and the former Soviet Union. (前苏联)                          Economic Crisis     The world now has a big economic crisis (经济危 机). It started with some US housing companies. Then it __ spread ___to other businesses in the world.Banks and governments are losing money. The cost of living is rising and many are going through hard times. Some people even lost their jobs.

1. The passage above mainly tell us _____.

[ ]

A. some very famous people. B. Some biggest companies are losing money C. Some of the biggest events D. Some athletes

2. The underlined word in the paragraph means _____.

[ ]

A. 传播 B. 传开 C. 传达 D. 传送

3. A reader who cares much about science and technology may be more interested in _____.

[ ]

A. The Olympic Games B. The American president C. Spacecraft D. The economic crisis

4. According to the passage, the economic crisis _____.

[ ]

A. starts in some American housing companies. B. only spread to some American companies C. only Banks and government are losing money D. People all lost their jobs and are going through hard times

5. Which of the following statements is Not True according to the passage?

[ ]

A. 51 Chinaese athletes broke the world records and won the gold medals B. China Succeeded in the space walk and the Olympic Games. C. Barack Obama was elected president of America and he is the first black president D. The world economy is at a bad time and many people suffered a lot

如图所示为高速公路汽车速度监测系统，测速雷达测量车速，经控制器判断后，控制摄像头将超速车辆的图像信息记录下来，作为违章处罚的证据。该速度监测系统中的被控制对象是（）

A.汽车

B.测速雷达

C.速度显示器

D.摄像头

设备的技术寿命是( )决定的。

A．设备的有形磨损
B．设备的无形磨损
C．维护费用的提高和使用价值的降低
D．更新速度的加快和更新成本的提高

某化学老师在一次化学测验中设计了下列试题并对学生的解题结果进行了统计分析试题：已知H₂(g)+Br₂(1)=2HBr(g)ΔH=-72kJ/mol
蒸发1mol Br₂(1)需吸收30kJ能量其他相关数据如下表

相关数据
	H2(g)	Br2(g)	HBr(g)
1mol分子中的化学键断裂时需吸收的 能量(kJ)	436	a	369

则表中a为______
A．404 B．260 C．230 D．200
考试结果有78.3%的同学按下述思路解题而错选A
H₂(g)+Br2(1)=2HBr(g)ΔH=-72kJ/mol ①
Br₂(1)=Br₂(g)ΔH=30kJ/mol ②
热化学方程式①—热化学方程式②得
H₂(g)+Br₂(g)=2HBr(g) ΔH=-102kJ/mol
所以369×2-(a+436)=-102得a=404
(1)本题正确答案是______，正确解题思路是什么
(2)试对学生解题错误形成的原因进行分析。

诉讼参与人或者其他人有（）行为之一的，人民法院可以根据情节轻重，予以训诫、责令具结悔过或者处一千元以下的罚款、十五日以下的拘留；构成犯罪的，依法追究刑事责任。

A、有义务协助执行的人，对人民法院的协助执行通知书，无故推拖.拒绝或者妨碍执行的

B、伪造、隐藏、毁灭证据的

C、指使、贿买、胁迫他人作伪证或者威胁、阻止证人作证的

D、隐藏、转移、变卖、毁损已被查封、扣押、冻结的财产的