下列属于第二类医疗器械的是()
A．医用脱脂纱布
B．医用X线胶片
C．创可贴
D．牙科椅
E．人工肾
参考答案：A
根据句意和词首字母完成句中所缺的英语单词。
1. Can you tell me the four famous inventions in a_____ China?
2. Lu Xun was one of the greatest writers in the 20th c_____ of China.
3. Please keep the room clean. And don't t_____ the waste paper everywhere.
4. James noticed two policemen coming t_____ him.
5. Chicago d_____ into a big city in the late 1800s.
成年中期的年龄是在（）。
