问题
问答题
设计一个实验,证明液体内部存在压强.(要与课本上的实验不同)
答案
把一个侧壁和瓶底有小孔的空塑料瓶压入一桶水中,水会喷入瓶内.说明液体内部有压强.
设计一个实验,证明液体内部存在压强.(要与课本上的实验不同)
把一个侧壁和瓶底有小孔的空塑料瓶压入一桶水中,水会喷入瓶内.说明液体内部有压强.
A.5:05 B.6:35 C.8:35 小题2:It takes ________ to get from Beijing to Shenyang . A.17 hours and 50 minutes B.11 hours and 15 minutes C.6 hours and 35 minutes 小题3:If you want to go to Chengdu from Taiyuan, you can take the ________ train. A.No.11 B.No.185 C.No.186 小题4:The No.186 train arrives in Taiyuan at________. A.5:05 p.m. B.10:50 p.m. C.5:05 a.m. 小题5:It takes _______from Tianjin to Beijing by train. A.about 2 hours B.half an hour C.about an hour |