小型动物线虫普遍存在各类土壤中，其类群和数量极丰富，被看作是生态系统变化的每感性指示生物之一．我省沿海某湿地的三个群落中土壤线中调查结果如下表所示：

请据表中数据回答：

（1）科研人员调查土壤中的线虫时，常采用____ 的方法进行采集、调查．首先在三个群落内各选取5个采集点，每个土样分0﹣10cm、10﹣20cm两层，在设置采集点时应做到____ 选择地点．

（2）腐食线虫属于湿地生态系统的____ 成分，生活污水的直接排放使此类线虫和表中____ 线虫数量明显增多

（3）表中三个群落的____ 线虫均为绝对优势类群，且各营养类型的线虫都“表层聚集”分布．从线虫的取食习惯分析，这种现象主要原因是①湿地植物的根系主要分布在____ （cm）②深层土壤中____ 积累较少

（4）根据表中数据分析，营养结构最复杂的群落可能是____ ，因为该群落土壤线虫的____ 最高．

    Everybody, welcome to ____(we) company. I am Luisa, Director of the department. Let me say something to you all. The starting of work can be exciting on the hand, and can also be ____(worry) on the other. No matter what your future job is, you will have to work with others. Leaning to get on well with others must come first,____ (include) all staff in the company and our ____ (custom).

    And secondly, right after my introduction, spend some time reading the introduction of our company and get to know the people in your office and find out ____ the company is like. This afternoon you can walk around our workshops and know ____ (much) about the products. No one is allowed ____ (leave) the company before 5:30 pm. By the way, lunchtime ____ (come) at 11:50 and it's free ____ charge.

    Remember: Learning is so important ____ it can change your future life.

This is what I'd like to say to you at the moment. If you still have any question, please come to my office. Thank you.

当前铜仁市正在努力创建“全国文明城市”、“国家环境保护模范城市”、“国家卫生城市”、“国家园林城市”和“中国优秀旅游日的地城市”，全面提升铜仁城市功能、提高市民文明素质，全力打造生态文明、环境优美、秩序优良、服务优质、管理精细的宜居宜业宜游的美好幸福新铜仁。但在创建的过程中，还有许多不和谐的音符，看下图回答下列问题：

因我国已出现了人口老龄化现象，故必须采取鼓励生育的人口政策．（判断对错）