受弯构件中弯起钢筋的作用是什么应满足哪些构造要求

下列关于计算机病毒的叙述错误的是( )

A．计算机病毒只能通过网络传播
B．计算机病毒是一种有害程序
C．计算机病毒具有隐蔽性的特点
D．计算机病毒是一种能够自我复制的一组计算机指令和程序代码

阅读理解

                                                                2010 Summer Camps

      Summer camps provide boys and girls with a great summer experience. Whether you are seeking a traditional camp or an adventurous camp, there is a summer camp for you!

    The 2010 Summer Camp Directory:

    1. Camp Voyageur

    Adventure Camp: Canoeing, Wilderness

    Boys' camp, operated since 1951 by the Erdmann family. Full incamp program of land and water sports but half of the campers' 4 weeks or more will be spent paddling, hiking & camping in the nearby Boundary Waters Canoe Area Wilderness. One trip leader stays with four campers. Ages 1316. American Camping Association Accredited (认证).

   Camp Address

    PO Box 420

    Ely, Minnesota 55731

    USA

     (800) 9507291.

    2. Rockbrook Camp for Girls

    Girls Only-Overnight Camp

    Rockbrook is a traditional overnight summer camp for girls located in the mountains of North

Carolina.  Established in 1921, it offers a diverse program of horseback riding, outdoor adventure,

whitewater rafting, crafts and more. Girls ages 616 attend for 2, 3or 4week sessions.

    Camp Address

    4000 Greenville Highway

     Brevard, North Carolina 28712

     USA

     (828) 8846151.

    3. Glen Helen EcoCamps

     Coed (男女兼收的)-Day and Overnight Camp

     Choose from a variety of five day long overnight and day camps in the midst of a 1,000 acre

nature park with an onsite raptor(肉食) center. It features handson & fun educational programming

with trained naturalists. Camp sizes kept under 12. Day camps $ 180, overnights $ 275. Ages 515.

June 16July 25.

     Camp Address

     1075 St. Rte. 343

     Yellow Springs, Ohio 45387

     USA

     (800) 5384893.

    4. Backyard History Day Camps

    Coed    -Day Camp

    Heritage House is featuring a series of 7 summer day camps, from July 8 until August 19. The

camps are for children aged 612 years old and run from 9:30 am3:30 pm on Wednesdays. Camps

cost $20 per child/day if you register & pay by June 8 and $ 25 per child/day after. Each day features

a different theme!

    Camp Address:

    11 Old Slys Road

    Smiths Falls, Ontario K7A 4T6

    Canada

     (613 ) 2838560.

1. The text is probably written for________.

A. teachers    

B. parents

C. children    

D. patients

2. If David joins Adventure Camp for boys, how long can he    stay there at most?

A. Five days.  

B. Seven days.

C. Two weeks.  

D. Four weeks.

3. Susan dreams of becoming a Charles Darwin when she     grows up, which camp might interest her?

A. Camp Voyageur.

B. Glen Helen EcoCamps.

C. Rockbrook Camp for Girls.

D. Backyard History Day Camps.

4. How is Backyard History Day Camps different from other    camps?

A. It offers a discount.

B. Younger children can join.

C. It is for both boys and girls.

D. It lasts the shortest.

阅读表达。

     I like watching TV very much for I think it has many advantages. First of all, watching TV is a good rest.

After a day of hard work, we need a good rest. Watching TV can make our mind and body not tired any more

because of the pleasant music and TV plays.

     Besides, watching TV is entertaining. There are many kinds of entertainments, such as sports activities,

singing and dancing concerts, plays and the activities within a short time. We need at least ten hours to fly

from New York to Paris, a week by train from Beijing to Moscow and an hour to drive from Queens District

to Manhattan District. But within just one second, TV can bring us from an NBA game in New York to a

fashion show in Paris by changing the channels.

     Most important, watching TV is educational. Our children can learn every kind of subjects through the

educational programs and the special reports on TV, and it's easy for them to learn Chinese from a Chinese

teacher in Beijing and to learn Russian lessons from a Russian teacher in Moscow. Even we can learn how to

behave well from the TV plays. Meanwhile, a teacher can teach millions of students without a huge classroom.

1. What's the best title for the text?

    ________________________________________________________________________________.

2. According to the writer what's the most important reason for watching TV?

    ________________________________________________________________________________.

3. Why can watching TV make the writer have a good rest?

    ________________________________________________________________________________.

4. Why is it not possible for us to go to every place to enjoy all the activities within a short time?

    ________________________________________________________________________________.

5. Why is watching TV educational?

    ________________________________________________________________________________.

10个月婴儿因面色苍白，食欲不振，懒动，多汗1个月住院。体检：皮肤粘膜苍白，心率130次/分，肝肋下3cm，脾肋下可触及。验血：Hb 70g/L，RBC 3.5×10 12/L，MCV　74fl(μm3)，MCHC 30%。以下治疗方案最恰当的是

A．铁剂注射+高蛋白饮食1个月

B．葡萄糖亚铁+维生素B12 1个月

C．硫酸亚铁+叶酸3周

D．硫酸亚铁+维生素C2个月

E．硫酸亚铁+维生素B12 4周

后关节囊破裂是下列哪一项损伤的常见严重合并症？（）

A.前交叉韧带

B.后交叉韧带

C.胫侧副韧带

D.腓侧副韧带

E.内侧半月板