A:不慎将酸溅到眼中,应立即用大量水冲洗,边洗边眨眼睛
B:不慎将浓碱溶液沾到皮肤上,应立即用大量的水冲洗
C:加热试管或烧杯时,应首先擦干外壁上的水
D:配制硫酸溶液时,可先在量筒中加入一定体积的水,再在搅拌条件下慢慢加入浓硫酸
根据下面的表格信息,写一篇短文描述Tom日常生活中的好习惯和坏习惯
锻炼(每天)
做家务(几乎没有)
阅读(每天)
上网(每天至少2小时)
水果和蔬菜(每周4-6次)
垃圾食品(每天)
要求1. 必须包含以上所有信息,可适当增加。2. 字数60字以上
为了引入气流,吹散雾霾,缓解城市环境问题,北京规划建设多条宽度500米以上的通风道。图甲为“北京市城区分布图”,图乙为“北京市风向玫瑰图”。完成下面小题。
Plants are very important. This is because plants can make food from air, water and sunlight. Animals and people can not make food from air, water and sunlight. Animals can get their food by eating plants and animals. People get their food by eating plants and animals, too. So animals and people need plants in order to live. This is why there are so many plants around us. There are two kinds of plants: flowering plants and non-flowering plants. You can know some trees from their flowers and fruits. Non-flowering plants do not grow flowers. You can not see many non-flowering plants around you. If you look carefully at the plants around us, you will find that there are many kinds of plants. Some plants are large and some are small. Most of them are green. Thanks to the plants around us we can live on the earth.