杨家将的故事流传至今已有800多年了,这些故事反映的是澶渊之盟订立之前 [ ]
A.北宋与辽的争战
B.北宋与金的争战
C.南宋与辽的争战
D.南宋与金的争战
答案:A
如果|x-2y|+(x+y-3)2=0,那么xy+1=______.
单词拼写。请根据句子意思及所给的中文或首字母提示完成单词。
1. L______ go fishing at seven o'clock.
2. H________ are some photos of my family. They are very nice.
3. Now he is t________ on the phone.
4. This TV s_______ is interesting, so many children like watching it.
5. Look! They are taking photos with a c________.
6. Some people are swimming in the _______ (游泳池).
7. Jack isn't Chinese. He comes form a ________ (西方的) country, France.
8. What are they talking _______ (通过) the phone.
9. The students_________ (打扫) the classroom every day.
10. —Can I borrow your eraser?
—_________ (当然). Here you are.