使用三点式自位支承所限制的自由度数目是（） A.三个自由度 B.二个自由度 C.一个

下面5位同学有不同的爱好，他们想参加志愿者活动，请你给他们分配合适的工作。

小题1:My boys want to join the sports club, but they don’t have enough coaches(教练).

小题2:In the kindergarten（幼儿园）, many girls like to listen to the stories, but the kindergarteners are too busy. They have no time to do that.

小题3:In the country school, the headmaster wants the kids to learn to sing and dance in their free time, but the school doesn’t have any volunteers(志愿者).

小题4:In the pet(宠物) center, many homeless dogs, cats and other small animals are ill, but they don’t have enough people to look after them. They really need volunteers.

小题5:Many old people live alone. They need someone to talk with them and make them smile, laugh.

A．Hu Nan likes to read. She likes reading to the children.

B．Li Lan loves animals and likes staying with them.

C．A’bao likes singing. He likes to be a singer in the future.

D．Xiao Shan enjoys talking with other people. He is very good at making others happy.E. Zhao Da is interested in sports. He does well in basketball, and in his school his friends call him the second Jordon.

“‘黄金水道’多河港”体现了长江的（　　）

A．水能丰富

B．灌溉价值

C．航运价值

D．养殖效益

男性，60岁，既往糖尿病史5年，吸烟40年。春节与家人聚餐，情绪激动时突然跌倒，意识丧失，呼吸变深成鼾音，颈软无抵抗，左侧肢体瘫痪，肌张力低下，急诊以急性脑出血收入院。

为明确诊断，应首先进行的检查项目是（）

A.脑血管造影

B.脑部CT

C.脑电图检查

D.脑部多普勒超声检查

E.脑部X线检查

假设你是李华，你班来自新西兰的交流学生Phelps生病回国治疗。请你用英语给他写封e-mail,主要内容包括：

1、询问病情；

2、介绍班级近况；

3、表达祝愿。

注意：1、词数100左右；

2、可适当增加细节，使行文连贯。

Dear  Phelps,

I’m sorry that you have to go back home for medical treatment .

Yours   Li  Hua

主板是PC机的核心部件，在自己组装PC机时可以单独选购。下面关于目前PC机主板的叙述中，错误的是( )。

A．主板上通常包含微处理器插座(或插槽)和芯片组

B．主板上通常包含存储器(内存条)插座和ROM BIOS

C．主板上通常包含PCI和AGP插槽

D．主板上通常包含IDE插座及与之相连的光驱