网络广告中关于动画的说法错误的是（）
A、动画可以增强广告传播效果
B、动画用得越多越好
C、动画容易造成视觉骚扰
D、尽量缩减动画的文件大小
参考答案：B
用适当的介词或副词填空
1. Good luck ________ your lecture.
2. Would you like to sing a song ________ TV?
3. The girl ________ the long hair is my sister.
4. Can you choose a piece ________music for me?
5. ________my opinion, Michael is an excellent actor.
6. Your homework is a little different ________ others.
7. My friend helps me look ________ my English book.I forget where I put.
8. She said she didn’t like to listen ________ music.
冷冻装置中氨气的纯度要求为多少？
