【环境保护】阅读材料，完成下列问题。

大鲵为我国二级重点保护两栖野生动物，性凶猛，喜肉食，常匿居在山溪的石隙间，夜间活动。对水域的清洁度和酸碱性要求较高，耐饥饿。食物缺乏时，会出现同类相残的现象，甚至以卵充饥。幼体发育为成熟个体时间漫长。主要产于长江、黄河及珠江中上游支流的山涧溪流中，近年来数量有骤减趋势。

分析大鲵数量骤减的可能原因并提出保护措施。

对的写正确，错的写错误。

    A young woman walks into a hat shop. A man in the shop says," Good morning, madam. Can I help you?" "Good morning, the woman answers." There is a green hat with red flowers in your window. "The man is glad to hear that. He says to himself, "I can sell the hat now. It has been there for a long time. The man takes it out of the window. He shows it to the woman, "It's a nice hat! Do you want it in a box or do you want to put it on your head?" "Oh, I don't like the hat at all. I only want you to take it out of your window. I pass your shop every day and I hate to see it there."

如图，MC∥AB，NC∥AB，则点M，C，N在同一条直线上，理由是____ 

某红外线遥控器发出的红外线波长为0.000 000 94m，用科学记数法表示这个数为（   ）