题干

受精卵最初分裂形成的细胞是球形的,而组成人体的细胞形态却是多种多样的,这是因为细胞发生了(    )

A:生长

B:分裂

C:分化

D:衰老

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答案(点此获取答案解析)

C

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     Rocky Mountain Summer Adventure Camps Bring Learning to Life!

     The Museum of Idaho Rocky Mountain Adventure Camps are available for students aged 6-14. Participants will have amazing outdoor experiences combined with adventure and fun. Space is limited to 20participants each session and registration is not complete until payment has been received by the Museum of Idaho. Registration fee is non-returnable.

     Junior Adventure Camp

     Children aged 6-9 (must have completed first grade).

     Well conduct experiments, go on field trips, and discover the fun and excitement of science! This year, we will learn about colonial(殖民主义的)science to go along with our exhibit, America’s Revolution!

     Instructor: Chloe Doucette

     Dates: June 27- June30

     Time: 9:00 a.m. - noon

     Cost: $75 per child, $60 per child for MOI members, $50 each additional brother or   sister

     Original Camp

     Children aged 9-12 (must have completed third grade)

     Original Camp is for children who are ready for an exciting full-day outdoor camp. Participants visit various habitats and ecosystems as we explore eastern Idaho. Well go bird watching, hiking in the mountains, and lots more!

Instructors: Alana Jensen, Jerry Petty

     Dates: July 18- July21

     Time: 9:00 a.m.  4:00 p.m.(9:00-6:00 on the last day)

     Cost: $150 per child, $125 per child for MOI members, $100 each additional brother or sister

     High Adventure Camp

     Youth aged 11-14 (must have completed fifth grade)

     High Adventure Camp is for youth who are looking for an amazing summer adventure! This outdoor camp is full of exciting physical challenges and involves participants in even more in-depth activities than the Original Camp. This year, students will study how rattlesnakes experience the outdoors!

     Instructors: Chloe Doucette, Mike Winston, Jerry Petty

     Dates: August 8- August 11

     Time: 9:00 a.m.  4:00 p.m.(9:00  6:00 on the last day)

     Cost: $150 per child, $125 per child for MOI members, $100 each additional brother or sister

     Participate in both Original AND High Adventure for only $200! Call522-1400 ext. 3002 to take advantage of this great offer. If you have any questions about the Museum of Idaho’s education programs, contact Chloe Doucette, Education Director at (208) 522-1400 ext.3002.

同类题3

阅读下列短文,然后从每小题A.B.C.D四个选项中选出能回答所提问题或完成所给句子的最佳答案。

    It seems that school children all over the world complain (抱怨) about their school food. What do students of your age eat for lunch at school in other countries?

Japan

    High schools have dining rooms. They serve everything from noodles to rice, but not burgers and chips. Other children bring food from home, such as cold rice balls, meat or fish, pickles (泡菜) and vegetables. Twice a year parents are invited to have a taste of the food.

United States

A typical menu from a US school is made up of a hamburger with fried potatoes or roast chicken, lettuce and pickles, fruit and cookies. School lunches must also provide at least one third of the daily amount (总量) of necessary nutrition (营养), such as, vitamin A, vitamin C and calcium (钙).

Australia

    Meat pies, sausage rolls (香肠卷) and hotdogs are all traditional dishes in Australian school shops. But as the country pays more attention to children's health, healthier foods have started to appear on school menus. Many schools have used a traffic light system. The sale of red labeled c标注) foods, including cookies, chocolate and soft drinks. Is served only twice a week. Healthier green labeled foods such as sushi, sandwiches, corn and watermelons, however, are available every day.

South Africa

    Most of South African schools do not serve meals at all. Classes end at l; 30 p. m. and students get their own lunches. Many students bring food from home, usually sandwiches.

      Fast food and fried food sell the best among students. As a result, it has caused a rise in obesity c肥胖) among children. But as more people began to realize that being too fat may cause different kinds of serious illnesses, some schools in towns have led the way towards better nutrition. Now students at these schools are offered lunches of porridge with vegetables, such as cabbage, onions, beans, carrots and tomatoes.