* * 票筹集的公益金全部用于()
A、社会慈善社会救助社会保障
B、社会福利社会慈善社会救助
C、社会福利社会救助社会保障
D、社会救助社会团体社会慈善
参考答案:C
按要求完成句子,每空一词。
1. That is my grandfather. (改为一般疑问句)
______ that _____ grandfather?
2. This is an orange. (改为复数句)
______ ______ oranges.
3. His backpack is on the desk. (对划线部分提问)
______ ______ his backpack?
4. John has three baseballs. (改为否定句)
John ______ ______ three baseballs.
5. Does Linda play ping-pong every morning? (作否定回答)
______, she ______.
物理知识在生活中有着广泛的应用:吸尘器和排油烟机工作时是利用______压强将灰尘和油烟压入用电器的;用力拍打衣服,衣服上的灰尘将会脱离,是由于灰尘具有______;钓鱼杆是省______的杠杆.