随着人民的节能意识提高，太阳能热水器逐渐走进千家万户，下列有关太阳能热水器的工作原理的说法中正确的是（　　）

下列应用及相应的原理（用化学方程式表示）的是（　　）

根据括号里的单词提示，完成短文填空。

   Everyone ____ (have) birthday. Ways of celebrating birthday are different.

   In America, parents have a party ____ their birthday kid. The birthday kid can get lots of presents and eat the birthday cake with friends. In Brazil, special candies are ____ (need) for birthday. In England, the birthday kid ____ (lift) up and putdown by his classmates ____ (happy). In Thailand, two tall candies are lighted the night before birthday.

    As we all know, it is getting popular to have cake on birthday in China. But parents usually cook ____ big dinner for the kid on birthday. The birthday kid eats long noodles or eggs. Long noodles mean long life and eggs bring good luck.

    People in different ____ (Country) have different ways to celebrate birthday. It is important for us ____ (celebrate) birthday. Everyone grows one year ____ (old) after his or her birthday. Relatives and friends feel ____ (happy) for his or her growing up.

康有为、梁启超领导的“公车上书”拉开了维新变法运动的序幕。（  ）