That is not____kite. That kite is very small,but____is very big. (I)
A.平移 B.旋转 C.轴对称 D.都不是
下列关于实验操作步骤的叙述中正确的是
—— can we become good learners?——By working hard and asking the teachers for help.
根据意思写出的词语,错误的一项是( )
下列变化不属于缓慢氧化的是( )