题型:问答题 简答题 ________by the beauty of nature, the girl from London decided to spend another two days on the farm. [ ]A. Attracting B. AttractedC. To be attracted D. Having attracted 查看答案
题型:问答题 简答题 如图所示,河道宽L=100m,河水越到河中央流速越大,假定流速大小u=0.2x m/s(x是离河岸的垂直距离)一汽船相对水的航速是10m/s,它自A处出发,船头垂直河岸方向渡河到达对岸B处,则过河时间为________s;在这段时间内汽船顺着河道向下游漂行的距离为________m。 查看答案