中枢延搁
参考答案:
解析:突触传递需要轴突末梢释放神经递质,经突触间隙扩散到突触后膜,才能产生突触后电位,因为耗费时间较长,故称为中枢延搁。
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.
患者,男性,22岁,头昏乏力,鼻黏膜及牙龈出血1周。化验:WBC42×109/L,Hb85g/L,PLT23×109/L,血片中有幼稚细胞。骨髓增生极度活跃,原始细胞50%,早幼粒细胞21%,POX染色阳性,α-NAE染色部分呈阳性反应,不被NaF抑制,确诊为急非淋巴细胞白血病,FAB分型是
A.v
B.AML-M2
C.AML-M3
D.AML-M4
E.AML-M5