问题 单项选择题 A1/A2型题

下列哪项是荧光抗体直接法的最大缺点?()

A.非特异性染色强

B.特异性差,敏感性强

C.敏感性差,一种荧光抗体只能检查一种抗原

D.特异性高,但操作复杂

E.无法定量

答案

参考答案:C

完形填空

Ask any group of teenagers in the UK what they most like to eat, and foods like pizzas, pasta, burgers and chips are always mentioned. Many young people would probably also list the local fast-food restaurant as their favorite place.

But what teenagers like to eat is not necessarily what they should eat. For a growing body, eating foods with plenty of calcium(钙), such as milk, yoghurt and cheese, is important because calcium is essential for the development of healthy, strong bones(骨头).Similarly, foods that are rich in iron(铁) are good for developing bodies, so it’s good for them to eat red meat, bread and green vegetables.

Life habits can be developed during our teenage years, so it is greatly important that young people are educated about what foods are good. In 2005, in order to change eating habits and open teenagers’ minds to new tastes, a cook named Jamie Oliver started a “Feed Me Better” project. He worked with teachers and cooks in a number of schools across the UK to provide more healthy school meals. Although some teenagers and parents refused to have a try at first, the project was generally a huge success. The newspapers wrote articles about him and a TV program showed his visits to the schools.

No one expects to end the teenage love with fast and junk food, but, hopefully, if projects like “Feed Me Better” continue to give out the right messages, more young people will understand the importance of eating healthily.

根据短文内容回答问题

小题1:What problem do teenagers in the UK have?

小题2:Why did Jamie Oliver start a “Feed Me Better” project?

小题3:Please list out three healthy food according to the passage.

小题4:请将第三段中划线句子翻译成汉语

小题5:请为短文拟一个题目

多项选择题