着水辊、着墨辊与印版摩擦，使网点（）。A.扩大 B.缩小 C.不变 D.无

小王在诸暨五泄风景区附近的岩层中找到了一块“鱼化石”，说明这一岩层一定是（  ）

A．岩浆岩

B．沉积岩

C．大理岩

D．变质岩

某中学参加春季植树，其中2个班各植560棵，3个班各植600棵，4个班各植620棵，另外3个班分别植570棵、580棵、590棵，在这个问题中，叙述正确的是

[     ]

A.中位数是600，众数是600，平均数是580

B.中位数是600，众数是620，平均数是595

C.中位数是590，众数是600，平均数是588

D.中位数是620，众数是600，平均数是588

阅读理解。

                                                                      You can make the

                                                                     difference between

                                                                       this…and this 

     This summer, join the International Conservation Scouts on a fun-filled holiday with a difference. Year after

year, young people from all around the world get together at one of our sixteen conservation (环境保护) camp. Their shared aim? To help protect the countryside and its wildlife.

      Many animals and plants are in danger of disappearing forever. The dormouse, a kind of mouse, for

example, needs woodland plants for food and trees to stay in. Its habitat (栖息地) is being destroyed by man

and it needs our help to survive.

     On a conservation camp holiday you will learn all about nature and how to protect it. Our trained leaders

will accompany you and tell you everything you need to know. Because of this you don' t need any experience,

just energy and enthusiasm. You will explore the countryside and work to ensure the survival of hundreds of

animals and plants and still have plenty of time to enjoy the camp's excellent sports facilities and organized

nature paths through beautiful scenery.

     The International Conservation Scouts is a worldwide organization, so there must be a camp near you, You

can spend a splendid holiday at any of the camps for as little as f 60 including accommodation and food.

     For more information send for a free conservation camps handbook today.

                                                          International Conservation

                                                         Scouts Stanton St John

                                                           Oxford shire OX7 1TL

                                              THEKEY TO SAVING WILDUFE IS TO

                                         FROTECT NATURAL HABITATS: YOUR WORK

                                                    WILL MAKE A DIFFERCNCE

1. The main purpose of this passage is ______.

A. to offer young people a fun-filled holiday

B. to attract young people to attend a conservation camp

C. to persuade people into exploring the countryside

D. to raise funds for the International Conservation Scouts

2. According to the passage, you can ______ at the conservation camps.

A. experiment on the dormouse

B. practise your favorite hobbies

C. enrich your knowledge of wildlife

D. have free accommodation and food

3. Judging from the writing style of the passage, it is ______.

A. a piece of advertisement

B. a science report

C. a passage for professional reading

D. a passage for arguing an opinion

学生上课时，边听边记笔记是注意的品质是______。

A．广度(范围)
B．稳定性
C．分配
D．分散

面向对象的程序设计方法中涉及的对象是系统中用来描述客观事物的一个 【2】 。