读“黄河流域略图”,分析回答问题.
如图,在1﹣4号瓶中分别放入相同数量(各100粒)绿豆种子,在不同条件下进行培养,1﹣4号瓶萌发的种子分别是0、95、0、93粒.
A new study says that American children have exciting after-school life. Many junior and senior students have a lot of interesting things to do in their free time. About 57% students have activities every day. 82% students have activities at least four times a week. American students spend their free time doing sports or enjoying arts, music and dancing. They like to have fun outside school because they can make a lot of friends during their activities.
读工业基地图回答问题
“中华开国五千年,神州轩辕自古传”,被后人称作“轩辕”、“人文初祖”的是( )