什么叫PN节?
参考答案:
用特殊工艺把P型和N型半导体材料结合在一起后,在它们的交界面上所形成的特殊带电薄层。
Everyone believes that colours can affect our moods,but do you know food can also change our moods and make us feel happy or sad? Food can affects our moods. Scientists have already made some reports to explain what effects the different food can bring us.
When you feel blue or a little sad, you may try the food with some sugar in it. (1)Scientists find that a banana can help people get out of sadness. But when you eat the banana, you'd better eat it slowly. Don’t you think it's quite interesting? So next time, eat chocolate when you are in a bad mood. If you are feeling stressed, you should eat some green vegetables or oranges. They can help you feel relaxed. (2)If you are angry about something and want to ______ down, _______ to eat some sunflower seeds.
小题1:将(1)句译成汉语。___________________________________________________
小题2:在(2)句空白处填上恰当的词使句子意思完整,上下文通顺:_______、_______
小题3:回答问题:If you are feeling stressed, what should you eat?
________________________________________________________
小题4:在文中找出与下列句子意思相近的句子。
We should eat bananas slowly._________________________________
小题5:找出文中或写出最能表达该短文主题的句子。
_________________________________________________________
教师作为专业人员的特定要求不包括()
A.以谋生为主要目的
B.必须专门从事教育教学工作
C.需要具备相应的专业知识
D.要达到符合规定的学历