—In a town near Tianjin.
A:When were
B:Where did
C:Where were
发菜细胞群体呈黑蓝色,状如发丝;生菜是一种绿色植物,两者分别因与“发财”和“生财”谐音而备受百姓青睐.下列属于发菜和生菜的相同点的是( )
设集合A=x|1<x<4,B=x|x2-2x-3≤0,则A∪B=( )
下列加线词语运用不正确的一项是( )