乙酰胆碱的作用是（） A.激动M、N受体 B.激动M受体 C.阻断M、N受体 D.阻

在四大公开赛的网球比赛中男子单打一般采用（）制。

A．三盘两胜

B．五盘三胜

C．五局三胜

Teaching and research are supported by the University’s extensive collections—the Yale University Art Gallery, the Yale Center for British Art, the Peabody Museum of Natural History, and the Collection of Musical Instruments. All the collections are open to the public.

Yale University Art Gallery

The Yale University Art Gallery, founded in 1832, today houses a collection that has grown to rank with those of the major public art museums in the United States. Its two connected buildings house ancient, medieval, and Renaissance art, Near and Far Eastern art, archaeological material from the University’s excavations (古迹), Pre-Columbian and African art, works of European and American masters from actually every period, and a rich collection of modern art. Across the street, the Yale Center for British Art, which was opened in 1977, holds the largest collection of British art and illustrated books anywhere outside the United Kingdom.

Peabody Museum of Natural History

Yale’s Peabody Museum of Natural History, founded in 1866, contains one of the great scientific collections in North America. Among its holdings are the University’s comprehensive mineralogical and ornithological collections, the second-largest repository of dinosaur artifacts in the United States, and the largest undamaged Apatosaurus (Brontosaurus 雷龙) in the world. The Peabody is truly a working museum, where public exhibition, research, conservation, teaching, and learning intersect (贯穿).

Yale Center for British Art

Institutions like the Art Gallery, the Center for British Art, and the Peabody Museum hold only a portion of the treasures in the University’s collections. From paintings by Picasso, to pterodactyl (翼龙) remains, to a 1689 tenor viol in the Collection of Musical Instruments, Yale’s possessions are meant to be accessible to the communities they enrich.

Collection of Musical Instruments

Exhibitions are also frequently mounted (裱贴) at the following venues on campus: Art + Architecture Gallery (School of Architecture), Beinecke Rare Book and Manuscript Library, Green Hall Gallery (School of Art), and Sterling Memorial Library, including the Arts of the Book Collection.

小题1:Which of the following cannot be found in the Yale University Art Gallery?

A．Near and Far Eastern art.

B．Pre-Columbian and African art

C．British art and illustrated books.

D．Works of European and American masters.小题2:Where will you go if you want to enjoy dinosaur artifacts?

A．Peabody Museum of Natural History.

B．Collection of Musical Instruments.

C．Yale University Art Gallery.

D．Yale Center for British Art.小题3:Which of the following has the longest history according to the passage?

A．Yale Center for British Art.

B．Yale University Art Gallery.

C．Peabody Museum of Natural History.

D．A musical instrument named tenor viol.小题4:We can learn from the passage that in Yale, ______.

A．collections are partly open to the public

B．there are many venues just for exhibitions

C．collections are from art museums in the US

D．exhibitions are frequently mounted on campus小题5:What is the text mainly about?

A．Introduction to Yale University.

B．Introduction to collections in Yale.

C．Introduction to venues in Yale.

D．Introduction to art works in Yale.

霍乱弧菌的主要致病物质是（）

A.肠毒素

B.内毒素

C.鞭毛

D.菌毛

E.荚膜

1998年5月，济南某化工厂(以下简称济南厂)与南京某化学制品公司(以下简称南京公司)在无锡签订了一份化工原料买卖合同，双方约定在1998年7月至12月之间由济南厂用罐装车分三批向南京公司发运化工原料共30吨，货到付款。同年7月，济南厂向南京公司发运原料首批10吨，并在货到后第三天收到该批货款30万元。8月初，市场上该化工原料价格上扬，济南厂便不再发货。南京公司因缺乏生产资料，几近停产。几经催促未果，无奈南京公司只得向上诲某化工厂以高于市场价5%的价格购买此种化工原料20吨。同年9月底，由于生产厂家太多，此种化工原料价格下跌，济南厂马上二次性发货20吨，并在装车待运前通知南京公司接货。南京公司立即通知济南厂，要求不要发货并解除双方签订的买卖合同。济南厂不同意，理由是合同中并无履约的具体期限，于是强行发货。货到南京后，因无处贮存，南京公司只得将此批化工原料转让给武汉某化学晶公司，谁知承运此批货物的南京某运输公司的货轮在安庆江面撞上重庆轮船公司正常行驶的客轮，货轮上部分化工原料泄露至江面，污染了沿江贝类养殖场。同年10月初，济南厂向南京公司催要货款，双方产生争议。根据上述情况，回答下列各题：

如果济南厂起诉南京公司，要求给付货款，具有管辖权的法院是：( )

A．济南市有关人民法院

B．南京市有关人民法院

C．无锡市有关人民法院

D．武汉市有关人民法院

在（）国家，野鸭的商标图案很受人们的欢迎，但人们讨厌孔雀、仙鹤。

A.美国

B.法国

C.日本

D.阿拉伯