下列哪一选项不属于我国西周婚姻制度中婚姻缔结的原则？A．一夫一妻制 B．同姓不婚 C

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March 12th,

Dear Diary,

      Today was Tree-planting Day. It was also a good day for me. I was very happy. At about 6 o'clock, I

got up and put on my clothes. At 6: 30, I had bread and milk for breakfast. Then I went to school. The teacher

took us to a hill. He taught us to plant trees there. We liked to do this, so all of us planted trees happily. We

planted about one hundred trees this morning. We watered them. We hoped they can grow up quickly. At 1: 00

in the afternoon, I got home. My clothes were dirty, but I was happy.

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　John

1. When is Tree-planting Day?

A. March 12th.

B. March 8th.

C. March 9th.

2. What did John do today? 

A. He growed flowers.

B. He planted trees.

C. He washed clothes.

3. How did John feel?

A. He felt happy.

B. He felt angry.

C. He felt sad.

近五年来，江苏省根据本省的资源、教育、基础设施等经济社会发展状况制定了“富民强省”的战略。在“富民强省”战略的指引下，个体、私营等民营经济和第三产业得到了全面发展；通过实施苏中崛起、苏北振兴等措施，使这五年成为江苏历史上发展最快、老百姓收入增长最快的时期。

（1）简述物质与意识的辩证关系？

（2）材料是如何体现这一关系的？

因崩中而致息微欲绝，汗出不止，面色苍白，脉微欲绝，其证候是( )

A．气不摄血证

B．气血两虚证

C．气随血脱证

D．气虚血瘀证

E．气滞血瘀证

据报道，“嫦娥二号”探月卫星将于2009年前后发射。其环月飞行的高度距离月球表面100 km，所探测到的有关月球的数据将比环月飞行高度为200 km的“嫦娥一号”更加翔实。若两颗卫星环月运行均可视为匀速圆周运动，运行轨道如图所示。则

A.“嫦娥二号”环月运行的周期比“嫦娥一号”更小

B.“嫦娥二号”环月运行的周期比“嫦娥一号”更大

C.“嫦娥二号”环月运行时向心加速度比“嫦娥一号”更小

D.“嫦娥二号”环月运行时向心加速度和“嫦娥一号”相等

齿轮材料为40MnB调质，齿面硬度为260HBS，其接触疲劳极限σ_Hlim为（）MPa。

A．190

B．240

C．580

D．700