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问题 单项选择题 A1型题

男，10岁，不自主抽动1年，表现为眨眼、耸肩、歪嘴、肢体抽动，喉中发声，紧张时加重，睡眠中消失，脑电图正常，可能的诊断为（）

A.癫痫

B.惊厥

C.抽动秽语综合征

D.睡眠肌阵挛

E.婴儿痉挛症

答案

参考答案：C

单项选择题

Colleges in the US have added a new subject, “great chemistry”, to their curriculum today. “Green chemistry (53) how we can develop products that won’t (54) the environment,” explains Paul Anastas, director of Yale University’s Center for Green Chemistry and Green Engineering, opened at the beginning of this year. The American Chemical Society, (55) approves more than 600 college chemistry programs, only lists about a dozen that teach green chemistry. But that (56) is growing.
Cambridge College in Massachusetts is offering “ an introduction to green chemistry” course this gall and is offering the nation’s first bachelor’s and master’s (57) in green chemistry. The program will have classes in environmental science and even environmental (58) and policy. These subjects are not (59) taught to chemistry major.
Employers (60) the introduction of green chemistry. Businesses are increasing seeking graduates (61) backgrounds in the subject because it can help them make or save money in he development and manufacturing of products. “We need people who can not only understand their place (62) , but also understand the worldwide perspective,” said Adam Peterson, a chemical division manager at Dow Corning Corp.

A．dislike
B．ignore
C．welcome
D．enjoy
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单项选择题

30岁就诊患者，口腔卫生情况不佳，左下第一恒磨牙患者有牙髓-牙周联合病变，疼痛剧烈，但患牙无松动。为了消除病痛，恢复健康。

同时还应对其采取（）

A．左下第一恒磨牙脱敏

B．左下第一恒磨牙充填

C．左下第一恒磨牙牙周治疗

D．左下第一恒磨牙调

E．左下第一恒磨牙拔除
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