甲为我国沿某线所作的地形剖面示意图，读图回答下列问题。D地形区突出的环境问题是什么？

动词填空(必要时可使用情态动词)

                                                                                       Let's learn Chinese!

     British girl Daisy Raffan not only (1)________(speak) fluent Chinese, but also runs a website (2)________(teach)

kids Chinese.

     The website (www.kidschineseclub.com ) (3)________(establish) on January 26, 2011 by the 17-year-old girl. She

had the brainwave after her mom (4)________(take) her to lessons to learn the language when she was just five.

     On Daisy's website, kids can log on and tune in(收听) to Daisy's lessons whenever they like, either at home or in

the classroom. Each lesson (5)________(have) four different parts:

     Language: Kids will learn new words.

     Writing: Kids (6)________(learn) to write new words and numbers.

     Culture: In this part, Daisy said she (7)________(tell ) you something about Chinese culture, such as the people

and the food.

     Practice: kids can hear, repeat, and then (8)________(practice) the words they (9)________(learn).

     Each week, "Kids Chinese Club" will choose its "Stars of the Week", the kids that have done a good job in the past

week.

     The website is fun, and it also helps British kids learn Chinese. British Prime Minister, Gordon Brown has already

praised Daisy and said that (10)________(learn) Chinese is important for Britain's future generations.

阅读下面的材料，根据要求作文。

2013年“星光大道”总决赛最后一场出现戏剧性的一幕：“山楂妹”因为要满足自己的助演要和大型乐队的合演的愿望，放弃自己的比赛资格，可知正因这种放弃感动乐队的指挥，乐队指挥又给“山楂妹”1分钟的演唱时间，作为最高的回报；在打分晋级中又出现争议，李谷一、闫肃主张按规则取消“山楂妹”资格，而赵本山、梁宏达的观点是他们不是专业的选手，规则可以灵活掌握，“星光大道”本身就是百姓的舞台，应该听从观众的意见。最后毕福剑把决定权交给现场的评委和观众，结果“山楂妹”顺利晋级。

读了这则材料，你有什么感受？联系自己的认识和经历，写一篇不少于800 字的文章。

要求：①选准角度，自拟标题，自定文体；②不要脱离材料的内容和含义；③不得套作，不得抄袭。

下列成语中，一定包含有化学变化的是（　　）

A．木已成舟

B．花香四溢

C．烛炬成灰

D．滴水成冰

强势有效市场假设认为，当前的股票价格已经充分反映了与公司前景有关的全部公开信息。( )

卢沟桥事变中的爱国三将领分别叫什么？