题目

Industrial pollution is not only a problem for the countries of Europe and North America but also an extremely serious problem in some developing countries. For these countries, economic growth is a very important aim. They want to introduce industries, and so they put few controls on the industries which cause pollution. Cubatao, an industrial town of 85 000 people in Brazil, is an example of the connection between industrial development and pollution. In 1954, Cubatao had no industry. Today it has more than twenty large factories, which produce many pollutants(污染物). The people of the 青少年正处在生长发育期，应注意营养均衡，膳食合理．（1）有些青少年不爱吃蔬菜、水果，影响生长发育，这主要是由于摄入______（填序号）不足而引起的．①维生素 ②油脂 ③蛋白质（2）“XX糕点”主要营养成分如下表所示．请根据该表回答． XX糕点 营养素 每100g含有 蛋白质 4.8g 油脂 20g 糖类 40g β-胡萝卜素（维生素类） 1.8mg 碳酸钙 400mg①所含营养素中属于无机盐的是______，没有列出的一类营养素是______．②正常情况下，人每日摄入的油脂不超过60g，由此计算，每日食用该糕点最多不应超过______g．③糖类是人体所需______的主要来源．