鱼的外形是流线形,可以克服在水中游泳的阻力。[ ]
√
按要求改写句子。
1. Would you like to play ping-pong? (肯定句)
_________________________________________________
2. We can buy some runners. (否定句)
3. I don't have a ball either. (肯定句)
4. I think so. (否定句)
5. I have a basketball. (将主语换为she)
6. These are shorts. (就划线部分提问)
对高层建筑的测量时为保证施工安全和测量数据的准确性,测量作业要求风力最大不超过()。
A.3级
B.3.5级
C.4级
D.4.5级