叙述离心喷雾干燥的雾化操作原理及其优点。
题型：问答题 简答题
问题：
叙述离心喷雾干燥的雾化操作原理及其优点。
题型：问答题 简答题
阅读短文判断对错，对的画(
)错的画(
)。
Today my family go shopping. We take a taxi to the shop. The shop is far and big. In the shop, the
women and men walk slowly. The children walk quickly. My mother buys a gift for me. My father buys a
camera. I have a sister and a brother. My brother is one year old. He learns to walk. It's hard for him to
walk. My mother helps him.
( ) l. They walk to the shop.
( ) 2. The people in the shop walk slowly.
( ) 3. My father buys film.
( ) 4. My brother is too young to walk.
( ) 5. There are five people in the family.