在划横线处填写正确的读音。

   Mr. George works at the school lost and found. He works very carefully. Every day, when he gets a lost thing, he takes notes about it. There are pens, books, school uniforms, keys, walkmans and many other things in the lost and found. Most of them are the students’. If you lose your things, it’s easy for you to go to the lost and found for help. But you must tell Mr. George what it is and its color and the day when you can’t find it. I think Mr. George is very helpful, and you will be happy when you find the lost there.

通过科学探究已知：鼠妇喜欢生活在阴暗潮湿的环境中．在科学探究过程中，如果做出的假设是“湿度对鼠妇生活有影响”，那么该探究活动设置的一组对照应该是（  ）