听音,判断对"√"错"×"。 |
( ) 1. Lingling went to Xinjiang in June. ( ) 2. Amy has got some pictures. ( ) 3. The black bag is nice. ( ) 4. The blue coat has got two pockets. ( ) 5. She did her homework yesterday. ( ) 6. My friends visit Beijing every year. |
1年前1个回答
1年前1个回答
求极限存在判断,连续性判断,间断点判断,可导判断的简便方法.
1年前1个回答
你能帮帮他们吗