【简答题】按照活塞运动方式的不同,活塞式内燃机可分为( )和( )两种形式。前者活塞在汽缸内作往复直线运动,后者活塞在汽缸内作旋转运动。
【简答题】完形填空。 Today is sunny. It's a good day for 1 . So you can see, I'm going for a walk 2 my grandmother. She 3 me an interesting story. But 4 hour later, we are lost. We don't know 5 we are. A policeman 6...
【简答题】根据所给图的顺序选词填空,完成短文,并唱歌。 Word List: cat grandfather brother family sister grandmother daughter The _____________ in our house. The family has a _____________. The father finds a ____________...
【简答题】阅读下列短文,然后信息归纳。 Hello, I’m Linda. I have a big family. They are my grandfather, grandmother, uncle, aunt, father, mother, cousin and me. My uncle likes sports. He has a great sports collection. He has ...
【判断题】接待截瘫的游客,选择路线时应尽量不走或少走台阶。()