阅读材料并解决问题:
求1+2+22+23+…+22014的值,令S=1+2+22+23+…+22014
等式两边同时乘以2,则2S=2+22+23+…+22014+22015
两式相减:得2S﹣S=22015﹣1
所以,S=22015﹣1
依据以上计算方法,计算1+3+32+33+…+32015=____.
阅读下列短文,从每小题的三个选项中选出最佳答案
It is morning now. Look at the sun, it rises in the east(东方). Look at the tree, the shadow is long. It is noon now. The sun is high in the sky. It is very hot. Look at the tree. The shadow is short. It is evening now. The sun goes down in the west(西方). Look at the tree, the shadow is long again. It is night now. The moon is high in the sky. There are some stars in the sky too.
冬季我国南方四川、广东的蔬菜能大量供应北方,主要取决于()
一元二次方程x2=2x的解为( )
求: