请根据下列图表用相关知识回答问题：

（1）a、b表示植物的生理活动：a是____ ，b是____ 。
（2）A、B表示两种物质：A是____ ，B是____ 。
（3）由于二氧化碳的排放量大量增加、人类活动造成植被的大量的破坏等。已经严重影响到生物圈中的____ 平衡。
（4）“低碳生活”，我们在行动！请你写出你准备采取的具体措施。（至少两条）。
____ ；____ 。

    One of my friends Fred did very little work when he was a student. He spent more time drinking in bars(酒吧) than working in the library. Once, we had to take an important exam. The exam had a hundred questions. To each question we had to write "Right" or "Wrong". The night before the exam, Fred was watching TV and drinking. He usua1ly worried a lot the night before the exam. But on that night he looked quite quiet. He told me what he would do." It's very easy," he said to me, "There are a hundred questions and I have to get fifty right answers to pass the exam. I'll bring a coin(硬币 )with me and throw it to decide(决定)answers. I'm sure I'll get half the questions right in this way. "During the exam, Fred sat down and really threw the coin for half an hour when he was writing down his answers. Then he left half an hour before the others. The next day he saw the teacher on the playground. "Oh, good, Mr. Wu," he said, "Have you checked the papers? Have I passed?" The teacher looked at him and smiled, "Ah, it's you, Fred. A moment, please." Then he put his hand into his pocket and took out a coin. He threw it into the air, caught it in his hand and looked at it. "I'm very sorry, Fred, you failed."

根据短文内容判断正误

如图所示，图甲为热敏电阻的R-t图象，图乙为用此热敏电阻R和继电器组成的一个简单恒温箱温控电路，继电器线圈的电阻为150Ω．当线圈中的电流大于或等于20mA时，继电器的衔铁被吸合．为继电器线圈供电的电池的电动势E=6V，内阻可以不计．图中的“电源”是恒温箱加热器的电源．

下图是我国厦—漳—泉（厦门、漳州、泉州）区域旅游景区与重要旅游资源分布示意图。现有旅游线路L1（厦门—马洋漂流—温泉度假村—野山谷生态乐园—厦门）和旅游线路L2（厦门—鼓浪屿—清源山—大地土楼群—厦门）。回答下面小题。