UWB技术主要应用在以下哪些方面？（）
A.无绳电话
B.地质勘探
C.家电设备及便携设备之间的无线数据通信
D.汽车防冲撞传感器
参考答案：B, C, D
根据首字母提示补全单词。
1.The v is the person who is hurt.
2. Don't be s . The doctor will be here soon.
3. Look! There are some b on his head.
4. You will p to be a doctor in this play.
5.The weather in Beijing is d from that in Shanghai.
洋金花是属于麻醉药.
