由腹主动脉分支供应的器官是（） A．心 B．支气管 C．卵巢 D．子宫 E．空肠

用高锰酸钾制取氧气时，发现水槽巾的水变红了，原因是[ ]

A．氧气溶于水

B．忘了在试管口放一团棉花

C．氧气与水发生反应生成了红色物质

D．集气瓶沾上了少许红色物质

t为int类型，进入下面的循环之前，t的值为0。while(t=1){...} 则以下叙述中，正确的是( )。

A．循环控制表达式的值为0

B．循环控制表达式的值为1

C．循环控制表达式不合法

D．以上说法都不对

CHOOSE YOUR VIRGINIA

Rock House Museum

Take a journey through history with a visit to the exciting museum and historic sites of Wytheville . The Rock House Museum offers glimpses into daily life in the 19th century . The museum is part of the 50 structures featured in Wytheville’s Historic Walking Tour . 540/233-3330 .

Grand Caverns

Grand Caverns is America’s oldest cave . Beautiful and massive formations . Union troops visited the caverns . Thomas Jefferson visited—you should , too ! Open weekends in March , daily April—October , 9 a.m.—5 p.m. Hour tours leave every 30 minutes . 703/249-5705 .

The News Museum

The News Museum in Arlington is the world’s only interactive（互动）museum of news . Visitors can be reporters or television newscasters , see today’s news as it happens on a block-long video news wall , and be taken behind the scenes to see how news is made . The News museum is open Wednesday through Sunday from 10 a. m.—5 p. m. You can visit www. News museum .Org .

Kenmore Plantation & Gardens

Kenmore Plantation & Gardens has over two hundred years of history from the Revolutionary War , Civil War and into the 21st century . Home of Betty Washington , George Washington’s only sister , and Patriot Col. Fielding Lewis . Explore this historic building and city block of restored gardens . Tea and ginger cookies served . 540/373-3381 .

Virginia Beach

Virginia Beach offers 11 000 hotel / motel rooms , plus cottages and campgrounds . Enjoy miles of clean beaches and a variety of family attractions . Fine restaurants , various shopping areas , exciting nightlife , and special events are offered throughout the year . 800/822-3224 .

小题1:What is the author’s purpose in writing this passage ?

A．To attract tourists to Virginia .

B．To encourage people to settle in Virginia .

C．To introduce historic sites in Virginia .

D．To give people a general description of Virginia .小题2: In what way is The News Museum different from Rock House Museum ?

A．It is larger .

B．It is more exciting .

C．Visitors can act in it .

D．Visitors can see more in it .小题3:If you want to enjoy yourself in the evening , you may go to       .

A．The News Museum

B．Kenmore Plantation & Gardens

C．Grand Caverns

D．Virginia Beach小题4:Which of the following places is NOT open in the winter months ?

A．The news Museum .

B．Grand Caverns .

C．Virginia Beach .

D．Kenmore Plantation & Gardens .小题5:Which of the following is NOT a fact when tourists are visiting the Virginia Beach ?

A．Tourists can camp in the open air .

B．Tourists can enjoy some special events there .

C．Tourists can not go there in their own cars .

D．Tourists can enjoy themselves on the clean beach .

今上海地区大部原属古代松江府。西晋文学家（），字士龙，华亭人，对客自称“云间陆士龙”，后人因此称松江为“云间”。

A.张华

B.陆机

C.陆云

D.嵇康

在生命科学发展过程中，证明DNA是遗传物质的实验是（）

①孟德尔的豌豆杂交实验

②摩尔根的果蝇杂交实验

③肺炎双球菌转化实验

④T₂噬菌体侵染大肠杆菌实验

⑤DNA的X光衍射实验

A．①②

B．②③

C．③④

D．④⑤