液体压强产生的原因：是由于液体受到______．液体压强特点： （1）液体内部向

下图所示为叶绿体中色素蛋白等成分在膜上的分布。在图示结构上

A．生物膜为叶绿体内膜

B．可完成光合作用的全过程

C．发生的能量转换是：光能→电能→化学能

D．产生的ATP可用于植物体的各项生理活动

（62-65题共用题干）　　女性，35岁，连续3年每年3～4月份下唇及舌背粘膜即开始溃烂，唇部结厚血痂，张口受限，进食困难。同时双手、双上肢皮肤起疱。在外院短期服强地松后症状逐渐好转，自愈。此次发作2周，与以往表现类似，口腔溃烂范围广泛，疼痛明显来诊

本病发病诱因与哪项因素无关

A．服用食物、药物

B．精神因素

C．微生物感染

D．寒冷刺激

E．女性内分泌改变

阅读理解

Dear Lower School Parents,  

     I hope you are enjoying a wonderful summer and taking the time to be lazy before school begins

August 11.I have taken some time off to visit family and friends and I'm enjoying having time to read.

But I have also been very busy preparing for the upcoming year.I have noted below some information

to keep you updated before August.

     We will continue to offer Extended Day Care for any Lower School student who needs to stay after

their school day ends.Extended Day runs until 5:30 p. m.under the direction of one of our teachers,

Becky Hahn with assistance from two other teachers.We will also continue to offer Homework Hour

for 1st～5th graders.Debbie Green will run the 1st～3rd grade hour and Dale Cofield will run the 4th

an 5th grade hour.

     I will also be hosting Lower School coffees throughout the year for anyone who would like to come

and visit.The coffees will be at 8:00 a. m.and will not have an agenda.Our first coffee will be held in the

Lower School Turner Library on Wednesday, September 15th.

     The teachers are already missing their students and have started returning to their classrooms to

prepare for the upcoming year.And Mr.Charles has finished cleaning and polishing our building.The halls

are bare but soon they will be bright and cheerful as we prepare for the children.

     Please watch for a letter from your child's new teacher giving details about the upcoming year.In the

meantime you can access the Valwood web page and find the summer reading assignments for 3rd～5th

graders. Additionally, this year all information regarding the beginning of the 2010～2011 school year

will be posted on the Valwood website.Please visit www.Valwood.org and click on "Back to School"

to view and print the forms.Complete and return them to the school by August 10.

     If you have any questions or concerns regarding the Lower School, please do not hesitate to call me

at Valwood, extension(电话分机) 7333.

                                                                                                                 Sincerely,  

                                                                                                             Rhonda Hamman

                                                                                                          Lower School Dean

1. Who will be in charge of Extended Day Care?

A. Becky Hahn.  

B. Debbie Green.

C. Dale Cofield.  

D. Mr.Charles.

2. Which of the following is TRUE about Lower School coffees?

A. They are intended for students only.

B. They will be held every Wednesday.

C. The first one will be held in August.

D. They will be hosted by Rhonda Hamman.

3. From Paragraph 4 we learn ________.

A. how the students miss their teachers

B. how the teachers prepare their lessons

C. how the parents prepare for the new term

D. how the school gets ready for the new school year

4. According to Paragraph 5, parents ________.

A. are asked to help their children learn online

B. may offer their suggestions on the school's website

C. will receive a letter from their children's new teacher

D. need to fill in the forms online and email them to the school

邹平六电#3吸收塔最上层单方向喷头的数量（）。

A、100；

B、101；

C、102；

D、103。

“经过感性认识上升到理性认识，透过现象抓住事物的本质和规律”是认识的（）

A.根本目的

B.根本途径

C.第二次飞跃

D.根本任务