猫淋巴肉瘤的病因为（） A.化学因子 B.物理因子 C.环境因子 D.免疫因子 E.

信息归纳。

     Birthday is always special for every person. It is a special moment that has to be celebrated (庆祝). For

parents who have kids at home, holding a birthday party is always an important thing. But what about holding

the 50th birthday party? When your mom or dad turns 50, you may want to have a nice and memorable (难忘

的) party for them. Here are some ideas to hold a memorable 50th birthday party.

     The most important thing in a party is the theme. Set the theme (主题) with the person's favorite thing.

For example, if your dad turns 50 this year and he loves gardening, then you can set the party in a garden full

of plants and flowers.

     Prepare a nice birthday cake. You don't need to put fifty candles on it. Five candles can also stand for fifty

years.

     Choose a humorous (幽默的) person to give a speech at the beginning of the party. It is a good way to

start a party and it will make all the guests feel easy at the party.

     Don't forget to take pictures and make a recording (录像) for the birthday party.

                                                          Information Card

场景(八)南方某穿堤涵闸施工时需修建围堰。施工单位在编制施工组织设计时，对施工技术措施进行了详细周密的分析，并编制了施工放样计划、混凝土施工措施计划、应急预案，绘制了施工总平面图。 根据场景(八)，回答下列问题：

本工程闸墩所用钢筋在使用前，应作（　　）试验。

A．拉力

B．冷弯

C．钢号

D．抗压

E．螺接工艺

网架的安装方法中，适用于螺栓连接节点的各种类型网架，并宜采用少支架的悬挑施工方法是()。

A.高空滑移法

B.整体顶升法

C.高空散装法

D.分条或分块安装法

某汽车的质量为5000kg，发动机的额定功率为36kW，在水平公路上匀速行驶时所受阻力为2400N，则汽车行驶中能达到的最大速度为______m/s；此汽车以额定功率启动，速度达到v=10m/s时的加速度大小为______m/s．

心脏压力负荷是指（）

A.心脏收缩时所承受的阻抗负荷

B.静脉压是心室肌的后负荷

C.心脏收缩、舒张时的心腔容积

D.心脏舒张时所承受的容量负荷

E.心脏收缩时所承受的容量负荷