热爱生命，尊重生命，呵护生命，这是我们生活的主旋律。下列行为不属于珍爱生命的（    ）

①初中学生遇见有人落水，不假思索，下水营救              ②学校草坪上设置温馨提示：“小草也是生命，请脚下留情”

③为改善双休日伙食，两同学结伴到田野里捕捉青蛙      ④骑车过马路，遵守“红灯停，绿灯行”的交通规则

如果一个直角三角形的两条边长分别是6和8，另一个与它相似的直角三角形边长分别是4和3及x，那么x的值的个数为（　　）

阅读下面短文, 按照句子结构的语法性和上下文连贯的要求, 在空格处填入一个适当的词或使用括号中词语的正确形式填空。

      We can use cameras to take photos. Can cats do it? Believe it or not, there is a cat that can use cameras ____ (take) photos. Read on and find out more information.

      The name ____ the cat is Cooper. He is a five-year-old cat and he ____ (live) in Seattle, America. He is very special because he is the only cat who has his own camera.

      At the ____ (begin), Cooper's owner puts a camera on his neck. He just wants to learn about the ____ (cat) life from the camera.

      When Copper ____ (bring) the camera home at the end of the first day, the photos that he took surprised his owner. Many ____ (beauty) pictures filled Cooper's day.

      It is ____ (real) interesting to be able to see the world from a cat's eye. Cooper's owner says that these photos let people see into a cat's world, ____ also help them to learn more about their pets.

       Cooper now has more than 12,000 fans on ____ Internet and has even made TV shows in America.

图丁是母鸡的躯体，但母鸡的____ 消失了，原因是摘除了____ ，缺少了____ ，因此使____ 不能维持。