我们的家乡（四川）所在地一年中能得到太阳直射的次数是 （   ）

如图为单克隆抗体制备流程示意图．

（1）制备单克隆抗体过程中要用到____ 和____ 技术．

（2）细胞融合是随机的过程，在HAT培养基中培养，目的是____ ．在细胞培养过程中，培养液中需要添加无机盐，但要注意无机盐的____ ，以保证生命活动的正常进行．

（3）为选育出能产生高特异性抗体的细胞，要将从HAT培养基上筛选出的细胞稀释到7～10个细胞/mL，每孔滴入0.1mL细胞稀释液，其目的是____ 

（4）若用¹⁵N标记的氨基酸培养能产生单克隆抗体的细胞，放射性物质在细胞结构中出现的先后顺序是____ 

（5）最终筛选获得的杂交瘤细胞的特点是____

①该公司是股份有限公司

②该公司是有限责任公司

③袁隆平以自己所持股份的数额对公司承担有限责任

④袁隆平以其认缴的出资额为限对公司承担责任

根据短文内容，选择正确答案。

    The computers changed our lives in the 1980s, the Internet changed our lives in the 1990s, and the robots will change our lives in the new century.

    Do you think there will be robots in people's homes? It's not a dream that every home will have a robot.

    Now, robots are not only able to help people do the housework, they can also help the doctors do the difficult operations, play chess with people, play the piano and so on.

    A new cooking robot is used in Beijing. It can cook all the dishes on the menu; you only need to wait two to four minutes. In the future, the robot will be a nurse, a security (安全）guard, or a partner in your life.

    Experts believe robots will be used everywhere from the industrial (工业的） robots to service robots. In the future, robots will become part of the family, and provide close service for people. We all look forward to the new robot age.