题目

 This is a true story that happened in Japan. In order to renovate the house, a Japanese tore open the walls. Japanese houses normally have a empty space between the wooden walls. When tearing down the walls, he found that there was a lizard(蜥蜴) stuck there because a nail from [Z-X-X-K]outside was hammered into one of its feet. He saw this, feeling pity and curious. When he checked the nail, he found it was nailed 10 years ago when the house was first built.     What happened? The lizard had survived in such a position for 10 years! It has been in a dark wall partition (夹（理科）复数的值为（ ）A．-8B．8C．-8iD．8i