霍乱毒素的作用机制是（）

A:Gsa的ADP核糖化 B:Gia的ADP核糖化 C:Gq的ADP核糖化 D:Gβγ的ADP核糖化 E:Go的ADP核糖化

霍乱的典型症状状之一腹泻是由于上皮细胞中cAMP水平：异常升高，Na⁺大量外流并伴之以水进入肠道，其机理是霍乱毒素将NAD⁺的ADP核糖基团转移到Gsa的Arg等残基侧链上，使Gsa丧矢

A:ATPase活性 B:TPase活性 C:CTPase活性 D:CTPase活性

下面属于美国BIM机构的是（ ）

A:bSa B:USACE C:GCS D:GSA

假性甲状旁腺功能减退症 (PHP)1A型存在

A:Gsa 基 因 突变 B:Gia 基 因 突变 C:两者都有 D:两者都无

假性甲状旁腺功能减退症 (PHP)1B型存在

A:Gsa 基 因 突变 B:Gia 基 因 突变 C:两者都有 D:两者都无

Guildford School of Acting (GSA) is possibly the world's most successful centre for musical theatre training. Our philosophy is based on your growth as an individual and your development as an artist within a highly disciplined wholE.

We want you to view yourself as a potential artist who can compete and succeed in all aspects of musical theatre performancE. To accomplish this, you will need to develop your professional awareness through a strict process of training.

We will guide you towards the development of a clear set of individual technical skills, with practical classes in：Group and individual singing, Ballet, Jazz, Tap and other forms of dancE.

Your skills are further developed through many exercises, scene work and project rehearsals(排练). Classes in dance and singing are highly ranked alongside acting classes and projects, which enable GSA Musical Theatre performers to become multi-skilleD.

Professional development classes and workshops with guest speakers drawn from the contemporary musical theatre industry ensure currency within your chosen field and enable you to maximize all employment opportunities.A.final show presentation in a West End theatre helps you complete your change from a musical theatre student to a professional performer.

The result is your development into a highly disciplined, individual and all-round performer who has both artistic skills and the ability to work in cooperation with others.

You can get in touch with us by：

Dr. Ana Flavia Zuim, Telephone：212-998-5154

Professor Dianna Heldman,dh24@nyu.edu

1. What type of the text is it?

A. An advertisement. B.A.diary.

C.A.travel guidE. D.A.performance report.

2. Which of the following is one of the majors for students in GSA?

A. Sports. B. English. C. History. D. Jazz.

3. Where is the students' final show presentation held?

A. At a school hall. B. At a West End theatrE.

C. At a stadium. D. At a rehearsal room.

4. Who will show special interest in GSA?

A. Tom who wants to become a writer.

B. Jake who lacks experience of drawing.

C. Lucy who has the desire to perform musical theatrE.

D. Peterson who expects to direct an international film.