以下天气符号所代表的天气哪一个是晴天（　　）

       Water can be a liquid, a solid or a gas. When it is a solid, it can be as hard as stone. When it is a liquid, it can run through your fingers. When it is a gas, you may not see or feel it.
       Water can change from a solid to a liquid or to a gas easily. This is why we always have fresh water. Now let us find out how it does. The heat of the sun turns liquid water into gas from the oceans, seas, rivers and lakes. The heat also turns liquid water into gas from the ground, the plants and the animals. Water in the gas rises and turns into clouds in the air.
When the clouds come near a mountain, they rise high. As the clouds rise, they get cooler. The higher they rise, the cooler they become. Then more and more water gas turn into water drops. In this way, the drops of water in the clouds get bigger and bigger. Then they fall to the earth as rain.
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驴咀（jué）____食物的时候，沉默寡言，似乎是有所（juàn）____念，偶尔一叫却惊天地泣鬼神。这使我（méng）____发了一个念想：驴若识字，我的诗歌呀散文呀就用不着往报刊社寄了，写好后（tuō）____付给驴，让它用高亢的鸣叫向世界宣读，那该有多轰动！