商鞅变法时制作“商鞅铜方升”标准器，秦王嬴政统一六国后，又加刻诏书发到地方，其主要影响是

有关催化剂的说法正确的是（   ）

2009年4月27日，上海市发改委举行水价调整听证会。提交听证的两套方案中，初拟的上调后的综合价格至少比目前高出40％。许多消费者对上调水价表示理解，但认为上调幅度偏大，“可能调价20％-25％比较合适”。如果给这则消息拟写一个新闻标题，最佳的是(    )

漫画中纳税人的行为　(　　)

注意：1）.每处错误及其修改均仅限一词；
2）.只允许修改10处,多者（从第11处起）不计分。
    More and more foreigners like to come to China. Last Friday our school was invited a foreign teacher in our city give a class to the students of Senior Grade Two. We found his class interested. I learned a lot from him. The teacher had a free talk to us with easy English . He spoke slow so that we could understand him well. Sometimes he repeated what we don't understand. My classmates were all active in the class. To his joy, I understood everything the teacher said. And I was able to ask question in English. This class encouraged me very much. I'm sure that until we keep on practising, it will be easy for us to learn speaking English well.