根据固井设计要求，固井时油气上窜速度一般不得大于（）。 A.80m/h B.15m/

上海世博会的口号是“城市，让生活更美好”，到2010年5月30日止，累计入园参观人数为8004300人，数字8004300用科学记数法表示为______．

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, uncluttered(整洁的)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 OREGON COAST. Activities will include: Kite flying, studying beautiful sea creatures, searching for sea life on a boat, science exploration at a science center and roasting over a beach campfire.

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

TEAM: Entries must be postmarked no later than July 31, 2010.

How to enter

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

Be sure to mark whether you have to or have not been to the Pacific Ocean in the 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 17th street NW, WashingtonD.C.20036.

小题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.小题2:

If you win the competition, you may________.

A．fly a kite on the beach

B．search the ocean for sea plants

C．build the biggest tower on the beach

D．roast the sea creatures over a beach campfire小题3:

What information can you get from the passage?

A．Your article should be at least 100 words.

B．Every kid can take part in the competition.

C．You should mark the drawing with your name.

D．You must send the drawing before July 31, 2010.小题4:

You can most probably read the passage in_______.

A．a textbook

B．a travel guide

C．a newspaper

D．a research book

临床上用两横线将颌面部分为面上、面中、面下三部分，第一横线是指（）

A.额部发际线

B.两眉弓中间联线

C.眼裂平行线

D.口裂平行线

E.舌骨水平线

混凝土拌合物的坍落度等级S3对应的坍落度是（）。

A、50-90

B、100-150

C、90-140

D、120-160

E、80-120

防爆电气设备按使用环境的不同分为（）类。

A、Ⅰ

B、Ⅱ

C、Ⅲ

D、Ⅳ

E、Ⅴ