现行中学教材中，有以下化学实验：

A．溴乙烷的水解  B．浓硫酸跟乙醇反应制乙烯   C．乙醛还原新制的氢氧化铜；

D．乙酸乙酯的制取     E．石油的蒸馏     F．葡萄糖的银镜反应 G．乙酸乙酯的水解．

对以上实验，按下列各操作的要求，用字母A、B、C、﹣﹣完成以下填空：（多填扣分）

（1）需用水浴加热的是　 ____　；

（2）实验装置不需要检查气密性的是　 ____；

（3）为防止液体暴沸，常需加少量碎瓷片的是　 ____　；

（4）需用温度计的是 ____

在日常生活中，我们尊重他人最基本的表现是（  ）

①对人有礼貌           ②尊重他人的劳动 

③接受他人的观点   ④尊重他人的人格

   American school life is different from (和……不同) Chinese. American students usually get to school at around 8:30 in the morning. They put their school bags in their lockers (柜子) and only take one book, one notebook and one pen to each class. In class, American students can sit in their seats (座位) when (当……时候) they answer their teachers questions
   At around 12:00 students have lunch. American students don’t go home for lunch. They have it at school. Most students like pizza(比萨), hot dogs or hamburgers. At 1:00 in the afternoon, they start to have classes. Their classes are usually over(结束) at three o’clock. Then they join in the activities （活动）of clubs or sports.