如果A+320=B+310,那么A______B(横线里填>、<或=)
因为 A+320=B+310,
且320>310,
所以A<B;
故答案为:<.
根据中文提示拼写单词。
1. Zhalong is a good place for many _____ (濒于灭绝的) birds.
2. He hurt his left arm yesterday but it was not very _____ (严重的).
3. The weather report says the _____ (温度) will drop to -5℃ tomorrow.
4. There are a lot of _____ (老鼠) in that old house.
5. A strong earthquake _____ (发生) in Yushu, Qinghai province on April 14 th.
请填出呼吸作用与光合作用的区别。