—Yes, I'm fond of YangYang. He plays a smart and handsome college student _______ is good at computer games.
A:which
B:what
C:that
D:when
为了便于研究光现象,我们引入“光线”来描述光的传播路径和方向,下列研究问题的方法与此相同的是( )
—Is it allowed _______ your hair colorful in your school?
—No. Our teachers think it's bad for our health.
情绪的作用非常神奇,它是一把双刃剑,既有积极的一面,也有消极的一面。
情绪的作用是什么?
若点(m,n)在函数y=2x+1的图象上,则2m﹣n的值是( )