科学发展观核心是（）。
参考答案：以人为本
He asked me__________with me.
A．what the matter is
B．what the matter was
C．what is the matter
D．what was the matter
下列图中所示的变化不属于化学变化的是（ ）
A．
木炭燃烧
B．
葡萄酿成酒
C．
镁条燃烧
D．
煤块制成蜂窝煤
