患儿女，2岁半。落日眼，耳聋，牙齿深褐色，流涎，对外界反应迟钝，伴手足徐动。 其最可能的诊断为
A. 苯丙酮尿症
B. 继发胜癫痫
C. 核黄疸后遗症
D. 甲状腺功能低下
E. 21-三体综合征
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Listen again to part of the talk. Then answer the question. Why does the speaker talk about her own work
A. To show how one organization uses various approaches to epidemiology
B. To describe her organization’s efforts to develop a way to quit smoking
C. To inform the students that she prefers doing research to giving lectures
D. To encourage students to work at her organization after they graduate
What point does the professor make about early jazz improvisation
A. Jazz musicians copied the music of ancient people.
B. Jazz was an entirely new way to compose music.
C. Improvisation changed the nature of popular music.
D. Trained musicians brought improvisation to jazz.
What can be inferred about children in the multiple role-taking stage
A. They know that different social roles require certain behavior.
B. They prefer taking roles that younger children will admire.
C. They understand that every person has only one social role.
D. They know how to amuse their classmates by role playing.
男孩，3岁，生后第2天出现前囟隆起，反复惊厥，不发热，经CT检查证实颅内出血，经抢救好转出院。14个月起出现反复冲头发作伴发呆，有时伴有大发作，每日发作10余次。至今不会独站，不会讲话。脑电图示两半球背景活动变慢，两侧有大量高幅尖波，尖慢波和1．5 Hz棘一慢波及多棘一慢波阵发。 该患儿属于下列哪种癫痫发作类型
A. 失神发作
B. 失张力发作
C. 肌阵挛性发作
D. Lennox-Gastaut综合征
E. West综合征
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