科学家通过诱变育种方法可培育出具有优良性状的新品种,如() A.杂交水稻 B.转基因

题型:单项选择题

问题:

科学家通过诱变育种方法可培育出具有优良性状的新品种,如()

A.杂交水稻

B.转基因抗虫棉

C.太空甜椒

D.克隆羊

考点:高中生物染色体变异与育种染色体变异与育种题库
题型:单项选择题

阅读下列材料,从各题所给A、B、C、D四个选项中,选出一个最佳答案。

A

56. We can read the above material in ________. [ ]

A. A newspaper                    

B. a traveling report 

C. a textbook                      

D. a job advertisement

57. You call _____________ if you’re interested in the special trips. [ ]

A. Reader 2007                    

B. 4, 5&6 day breaks 

C. Italian Special Offers              

D. 01223 434385

58. You have to pay at least ________ to go to SICILY & MOUNT ETNA. [ ]

A. £179                

B. £189            

C. £215      

D. £368

59. We can NOT learn about ________ of the special trips. [ ]

A. the price            

B. the food          

C. the time    

D. the sights

60. The trips are offered by __________. [ ]

A. Reader magazine              

B. Cambridge University 

C. NEWMARKET PROMOTIONS  

D. INDIVIDUAL BROCHURES

B

       Chuck Wall teaches management and human relations at Bakersfield College. He walked into class one day and told his students that their homework was to perform one act of random(任意的) kindness. His students did not understand the homework and didn’t know what to do, but the professor would not answer their questions. He encouraged his students to work it out for themselves.

       One week later, the students entered the classroom excited to share their stories. One student told of giving away blankets to the homeless. Another reported on helping a dog to find its owner, and another student had been trying to find a long, lost friend. Students were energized (给予活力) by the homework assignment and wanted other people to be kind too. With the support of local businesses, the students made stickers to put on cars that invited people to do something kind for others. They sold the stickers and decided to donate the money to a center for the blind---not surprising as Professor Wall is blind.

      Since then, similar kindness activities have been started in schools around the world. Many schools organize a Random Acts of Kindness Week, around November 13th, to celebrate World Kindness Day. Some schools use each day of Random Acts of Kindness Week to perform a different kind act, such as making a new friend, helping someone, doing community service, or raising money for a charity. Students learn to consider other people and thank about how small actions can make the world a better place.

61. The professor’s homework was to ask his students _________. [ ]

A. to write about kindness.

B. to be kind to strangers

C. to spend time helping other

D. to go out to raise money 

62. We learn from the passage that ________.[ ]

A. Chuck’s students are not clever enough

B. the students didn’t do Chuck’s homework

C. Chuck Wall is an unusual teacher

D. no students enjoyed Chuck’s homework

63. It is certain that _________. [ ]

A. the students got good grades in Chuck’s class

B. kindness activities are not widely accepted

C. Chuck Wall was not good at designing homework

D. the students only helped people they knew

64. In kindness activities students learn _________. [ ]

A. to deal with difficult things

B. to do great things every day  

C. to know about the world

D. to consider other people

65. Which is the best title of the passage? [ ]

A. Learning Kind Things                    

B. Teaching Kindness

C. World Kindness Day                      

D. Bakersfield College

题型:单项选择题

Mike ___________ a great day last weekend.[ ]

A. have

B. had

C. has

题型:单项选择题

汇票的期限一般不超过( )年。

A.1

B.2

C.3

D.4

题型:单项选择题

护理本科生临床学习教学可以采用发现法,其优点

A.培养学生解决问题的能力
B.培养学生实际操作能力
C.挖掘学生的潜力
D.培养学生良好的职业道德
E.培养学生的创新能力

题型:单项选择题

如果需要检索某位作者的文献被引用的情况,应该使用()检索。

A.分类索引

B.作者索引

C.引文索引

D.主题索引

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