下列液体中,不会出现丁达尔效应的是() ①鸡蛋清溶液 ②水③淀粉溶液 ④硫酸钠溶

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问题:

下列液体中,不会出现丁达尔效应的是(  )

①鸡蛋清溶液 ②水 ③淀粉溶液 ④硫酸钠溶液 ⑤沸水中滴入饱和FeCl3溶液形成的混合物

A.②④

B.③④

C.②④⑤

D.④

考点:溶液浊液胶体
题型:选择题


Every Object Tells a Story凡事皆有戏
Everyone has a particular object to which they attach a special meaning or story. Every Object Tells A (1) is a participative website that enables people to explore the stories and meanings behind collections of museum objects. (2) to the site can create their own stories and share their own interpretations and objects online.
The project (3) on the art of storytelling and involves four regional museums, in partnership with Channel 4 and Ultralab, a (4) technology research centre at Anglia Polytechnic University. It will be led by the Victoria and Albert Museum. It (5) the personal meanings and histories behind objects to get people to look at them in new ways. It (6) designed to inspire them to create their own stories and share their interpretations and objects of personal significance (7) a growing online community.
Video, audio, text and pictures combine on the site to offer an enticing, accessible (8) into the content. Users can choose to browse the hundreds of objects featured, or they can search for (9) particular theme or person. They can decide on the level of information they want on an object, from (10) stories conveyed through text and pictures, to the richer experience offered by accompanying video and audio. They will (11) encouraged to add their own interpretation or object to the collection, by uploading text, images, video or audio (12) the site or by sending text and images from a mobile phone. In so doing, they will be (13) to the website’s content and illustrating how a single object can convey different meanings to different people.
The (14) stories and wonderful objects will appeal to a broad audience. The project has specific relevance to all key (15) of the National Curriculum in English and literacy. Outreach sessions in regional partner museums will encourage people to (16) involved in the project locally and a video booth will travel around England, visiting shopping centres, libraries, bus (17) and the like, to enable people to capture their object and story in a short video. This will (18) be uploaded onto the site.
In addition to the national and local publicity given to the project, Channel 4 (19) promote the website from a number of its programmes, ensuring a wide appeal and providing an added (20) for people to contribute their content.

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宫内节育器并发症不包括

A.感染

B.出血

C.子宫穿孔

D.腰酸

E.闭经

题型:选择题

鱼的心脏与人的心脏的主要区别在于()。

题型:选择题

大学生心理健康教育的主要途径是()。

A.教集体育;

B.咨询;

C.开设相关课程;

D.个别教育。

题型:选择题

下列哪一个指标不属于世界卫生组织建议的生殖健康指标?()

A.婴儿死亡率

B.总和生育率

C.避孕现用率

D.孕产妇死亡率

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