SF-3102电动轮的牵引采用恒功率牵引。

根据短文内容，从短文后的选项中选出能填人空白处的最佳选项，选项中有一项为多余选项。

My name is Lisa.I am twelve years old.I am a student in XinmingMiddle School.__1They are the chess club, the swimming club, the art club, the music club.2_and it’s very interesting. We can play many different games in the club.

Every year, many famous Sports people come to our school.They tell us students to do sports because it’s good for our health.3 And in our school, many students like doing different sports.Some can play basketball well.Some can play soccer well, others(其他的)can swim well.4.

Besides(除...外)this, many famous musicians come to our school every year. ___5And they can also sing with them, play the piano with them.It’s good for the students to learn from the musicians.

A．They also show us how to do sports.

B．Students can show their talents(才艺)when they come.

C．They want to know who can do well in the concert.

D．In our school, there are many clubs.E.When they come, our school always asks the students to show that they do sports well.

F.I’m in the sports club because I like sports very much.

—Where was the boy taken away by the UFO?

—Oh, it was in the lake ______ he was swimming.[ ]

A. that

B. where  

C. because

D. at which

( )是流动资产中最重要的组成部分。

A．现金

B．利润

C．股票

D．存货

（30分）阅读材料，完成下列各题。

材料一  我国是传统的陆权国家,海洋国土观念淡薄,对海洋问题长期缺乏足够的重视,加之历史和现实的原因,我国的海上形势日趋严峻、复杂,其中尤以我国与周边海上邻国的海洋权益争端为甚。当前,钓鱼岛主权是我国 * * 任务的重中之重,考验着我国的智慧和实力，钓鱼岛问题的解决方式及其所产生的后果,将对黄海、南海问题产生重大影响。

记者调查发现，得知菲律宾立法夺取中国岛屿之前，23%的受调查者表示从未听说过黄岩岛；而接近80%的受调查者不知道黄岩岛的正确位置。不少国人不知道钓鱼岛的历史和地理状况，有些媒体甚至使用外国名称。中国人民历来崇尚“和而不同”、“以和为贵”的理念。但是保卫国土领海，慎战不等于免战，怯战不等于不战，尽管在维护海洋权益方面面临巨大的困难和挑战，知己知彼，定能赢战。

材料二  我国海岸线长达1.8万公里，海域面积达300万平方公里，接近陆地领土面积的三分之一。拥有丰富的海洋资源：石油资源量估计为240亿吨左右,天然气资源量估计为14万亿立方米，矿产资源种类繁多；有海洋渔场280万平方公里，浅海滩涂可养殖面积242万公顷。2010年全国海洋生产总值38439亿元，占国内生产总值的9.7%,全国涉海就业人员3350万人,其中新增就业80万人。

(1)结合材料一运用《政治生活》知识说明我国公民必须具备什么海洋战略意识？（10分）

(2)结合材料二,谈谈我国大力发展海洋经济的经济意义。(10分）

(3)在维护我国海洋权益方面怎样坚持唯物辩证法？（10分）

查摆问题、开展批评阶段的重点是什么？