每一个主要动作之间必须完整的填进足够的中间画面来使得每一个动作都会以（）的感觉开始和结束。
A、跳格
B、生硬
C、平滑
D、错位
参考答案：C
按要求句型转换。
1. They give us some candies as a treat. (改为同义句)
They give us a _______ _______some candies.
2. He does some homework at night.(改为否定句)
He _______do_______homework at night.
3. My father is a teacher .My mother is a teacher,too.(改为同义句)
My _______are_______teachers.
4. Amy goes to the school library every Wednesday.(对划线部分提问)
_______ _______does Amy go to the school library?
5. I help him, he helps me.(改为同义句)
We help _______ _______.
构音障碍的常见病因包括（）
A.脑血管意外
B.脑瘫
C.肌萎缩侧索硬化
D.帕金森病
E.多发性硬化
