英语就画线部分提问The first aeroplane flew at 48 kilometers per hour.(at 4_英语解答

英语就画线部分提问
The first aeroplane flew at 48 kilometers per hour.(at 48 kilometers per hour划线）急

人气：410 ℃　时间：2020-04-04 17:02:30

解答

How fast did the first aeroplane fly?