肾、输尿管结石手术治疗指征 A．直径大于1cm B．引起梗阻，影响肾功能 C．非手术

阅读理解。

     Win a trip to the OREGON COAST-Dare to Explore the Pacific Ocean. Build the biggest sand castle on

the beach. Search tide pools for sea life. Watch the bright orange sunset over the ocean. Whether you've been

to the Pacific Ocean before or have only closed your eyes and imagined it, we want to know how you would

explore the Oregon Coast if you had the chance to go this summer.

     JUDGING

     1. Clear relationship between the Essay and the Drawing 40%

     2. Creativity and skill in design and form of the Drawing 40%

     3. Expression of the passion to draw and explore 10%

     4. Journalistic quality, tidy nature and overall quality of the Essay 10%

     PRIZE

     By entering, you will have the chance to win an all expense paid trip to the ORECON COAST. Activities

will include: kite flying, studying beautiful sea creatures, searching for sea life in a boat, science exploration at

a science center and roasting over a beach campfire.

     Who may enter: The competition is 0pen to kids aged 6-14.

     TERM: Entries (参赛作品) must be postmarked no later than July 31,2009.

     How to enter

     Surf travelogue. com/kids to download and print out an entry form.

     Be sure to mark whether you have or have not been to the Pacific Ocean in山e form. Create a drawing of

the Pacific Ocean on a piece of paper using a pen or paints.

     Write an article of 100 words or less to explain why you want to go, what you think you would see and

what you would explore if you have never been to the Pacific Ocean, or describe your favorite memories from

your last visit.

     Send to Dare to Explore the Pacific Ocean. NG1145 14th street NW. Washington D. C. 20036

1. What is the most important for the judging? [ ]

A. Whether your article is written in a neat way.

B. The article and the drawing should be closely related.

C. Whether you show your passion to draw and explore.

D. The skill in your drawing the map of the Atlantic Ocean.

2. If you win the competition, you may _____.

A. fly a kite on the beach

B. search the beach for sea plants

C. roast the sea creatures over a beach campfire

D. win an all expense paid trip to Washington D. C.

3. What information can you get from the passage?

A. Your article should be 8t least 100 words.

B. Every kid can rake part in the competition.

C. You must send the drawing before June 31, 2009.

D. Your entry form should be downloaded and printed out.

4. You can most probably read the passage in _____. [ ]

A. a textbook

B. a travel guide

C. a newspaper

D. a research book

火力发电厂褐煤、高挥发分烟煤及低质烟煤应分类堆放。相邻煤堆底边之间应留有不小于（）m的距离。

A、10

B、12

C、14

D、16

由于激光器发出的激光耦合到光纤中去的功率高，所以传输距离远。

某农村曾用飞机喷洒农药以扑杀棉花害虫，事后不久，在这数十平方公里受到该农药污染的环境里，有少数人群出现鼻刺激、咳嗽、头晕、恶心，附近村民8人发生急性中毒(有多汗、呕吐、瞳孔缩小等症状)而入院治疗，住院者中5人系同家族亲属，另3人情况不明。在上述同一污染环境中，人群之间的健康危害效应出现如此大的差异，其最大可能原因是

A．个体接受农药的量不同

B．身体健康状况不同

C．个体营养状况有差异

D．个体年龄不同

E．个体易感性不同(某些个体存在该有害因素的易感基因)

部队年度业务训练时间是如何规定的？