铁碳合金室温的基本组织有()()和()等。
参考答案:铁素体、珠光体、渗碳体、奥氏体、莱氏体
如图为某粒子的结构示意图,有关于该粒子的说法中错误的是( )
A.该粒子的原子核内有12个质子
B.该粒子的核外有三个电子层
C.该粒子是一种非金属元素的原子
D.该粒子在化学反应中易失去2个电子
It's based on the idea ____ all people are created equal, ___ is accepted by most people.[ ]
A. that; that
B. which; which
C. which; when
D. that; which