拽小孩 春芽
共回答了18个问题采纳率:94.4% 举报
1年前
回答问题
你能帮帮他们吗
焰色反应透过蓝色钴玻璃看呈紫色的一定是钾离子吗?
(2013•眉山)如图所示,根据图中磁感线方向,标出通电螺线管的N、S极,并用“+”“-”标出电源的正负极.
关于作用力与反作用力,下列说法中不正确的有( )
the footballers are going to leave for brazil
帮忙改改句子That is my uncle (变一般疑问句、做肯定回答)It is my notebook(变成复数)
精彩回答
A great French writer has said that we should help everyone as much as we can because we often need help ourselves.
X+7-19=12.8怎样解方程
实验室制取气体的常用装置
海水呈蓝色,是因为它_____________。
给下列划线字选择正确的读音。