题目

根据句意及首字母提示完成单词 1. We Chinese eat food with c but not forks and knives. 2. The window is made of g and steel. 3. They p bikes in this factory. 4. —Whose m phone is this? —It’s our teacher’s. 5. We often wear g to protect our hands in winter. 答案：1. chopsticks 2. glass 3. produce 4. mobile  5. gloves某同学在学习了“声音是什么”以后，总结出以下四点，其中错误的是A．声音是由物体振动产生的B．声音是一种波C．声音具有能量D．通常情况下，声音在空气中传播得最快