李阳同学在“百度”搜索引擎中输入“魅力襄阳”，能搜索到与之相关的结果个数约为23

Venice(威尼斯) is the "Queen" of the Adriatic Sea(亚得里亚海). Every year thousands of people from all over the world travel to Italy to visit the city. Do you know why they like to go there for a visit?

Venice is a very beautiful city. It is quite different from other cities in the world. There aren't any roads or streets in the city, so there aren't any cars or buses. There are many canals（运河）in the city. There is one big canal and one hundred and seventy-seven small canals. People move up and down the canals in boats to go to work, go shopping or visit their friends.

But Venice is sinking(下沉）It is going down and the water is going up. In 2040 Venice will be under water. The Adriatic Sea will cover (覆盖) the city. The Venetians(威尼斯人） love their city and want to stay there. So they want to save(拯救)Venice form the sea. They do not want to leave. How can they save Venice? They can build some strong huge walls and gates in the sea. The gates will close to keep too much water out. In this way Venice will not sink.

小题1:People from all parts of the world go to visit Venice because________.

A．it is beautiful and quite different from other cities

B．there are a lot of kinds of boats on the canals

C．there are 177 canals in the city

D．it is the most important city in Italy小题2: The Venetians usually go to work or visit their friends________.                                                 

A．by bus

B．in boats

C．in cars

D．on foot小题3: Year by year the Adriatic Sea ________ and Venice________.                                                       

A．is rising; is sinking

B．is going down; is going up

C．is going up; is going up

D．is sinking; is rising

假设下图中两个含生长素(IAA)的琼脂块和两个胚芽鞘尖端所产生的生长素含量相同，则一段时间后对a、b、c、d、e、f、g空白琼脂块中的生长素含量的分析正确的是

A．c>f=d>a=b=e=g

B．f>a>d=e>b=g>c

C．c>a=f>d=e>b=g

D．f>a=b=d=e>g>c

阅读以下消息，按要求做题。（4分）

* * 不肯喝水与乡长不让喝水

3月20日,温 * * * * 踏访云南农户考察旱灾时,一位老大娘要给 * * 倒水, * * 拦下说:“你们运来这点水不容易,我们不能多喝你们的水。”

3月22日,河南睢县65岁的农民魏克兴找乡长蒋友军反映问题时,顺手拿起办公桌上乡长的水杯欲喝水,被乡长喝止,发生口角和肢体冲突。乡长喊来警察,把魏克兴拘留7天。媒体曝光后,乡长依然理直气壮:如果是老百姓之间,这类小纠纷就算了；但不拘魏克兴,他将“没有办法在这个地方干下去”；如果公安机关没有征得他的同意提前释放,他要告公安局。“这事你们报道老百姓还可以,我一个乡长,现在被网友这样评论,你说我还咋干？”

基层干部面对老百姓时倨傲骄横的心态,让人目瞪口呆。辽阳市网友说:“看看 * * 不肯喝旱区灾民的一杯茶,再看看这个乡长的嘴脸,党给你权力是为人民服务的,不是作威作福的,不拘留当事人没办法干？何等的威严！”昭通市网友指斥这位乡长:“农民是你的衣食父母,懂吗小子？”

（《中国青年报》2010年4月9日）

请用一句话评论这则消息，要求观点鲜明，运用对偶的手法，不超过10个字。

用两个相同的足够大的水平力F将100个完全相同的木块夹在两个相同的竖直木板之间，所有木块都如图所示保持静止状态，每个木块的质量都为m,图中所有的接触面的动摩擦因素都为μ ，则编号57和58号木块之间的摩擦力的大小为：（木块从左至右编号依次为1、2、…、99、100）   (   )

A．mg

B．7mg

C．8mg

D．μF/100

一般来说，燃料可供利用的发热量为（）

A.低位发热量

B.中位发热量

C.高位发热量

D.以上都不对