“圆明园，我为你哭泣！”同学们学习了“火烧圆明园”这段历史后，内心充满了悲愤和痛惜。第二次鸦片战争中，抢劫、烧毁了这座世界著名皇家园林的殖民强盗是（　　）

在下面一段文字横线处补写恰当的语句，使整段文字语言完整连贯，内容贴切，逻辑严密。每处不超过15个字。

    剪纸是一种非常普及的民间艺术，千百年来深受人们的喜爱，____，所以人们一般称其为“窗花”。 窗花的内容丰富、题材广泛。因窗花的购买者多为农民，   ____，如耕种、纺织、打鱼、牧羊、喂猪、养鸡等。除此，窗花还有神话传说、戏曲故事等题材。另外，花鸟虫鱼及十二生肖等形象亦十分常见。 窗花不仅烘托了节日气氛，将节日装点得红火富丽、喜气洋洋，____，集装饰性、欣赏性和实用性于一体。

根据短文内容，选择正确答案
In our city, there is a big zoo. There are a lot of different animals in it. There are some scary(吓人的) tigers and lions. They like eating meat and they eat much meat every day.
There are also two big elephants and a baby(幼崽) one. Children like to ride one of them. The elephants are very kind and friendly. They eat much grass and bananas.
In the zoo, we can see different kinds of bears(熊): brown bears, black bears and white bears. They are all shy and clumsy(笨拙的). They stand on their back legs and lift their front legs to ask for food They like cakes very much.
Do you like pandas? There's only one in the zoo. Her name is Lingling. She is very cute. She likes eating bamboos a lot. She is kind of shy, She's very interesting and lovely.

为除去下列物质中的杂质（括号内为杂质），下列操作方法不能达到目的是（  ）