已知关于x的二次方程a(x+2)2+k=0的一个根是-5,则它的另一个根是( )。
1
Mr. Brown ______ she often tells us is from a small village in England.
A.in which
B.about which
C.on whom
D.about whom
在硼硅酸盐玻璃中,分相结构对性能的影响如何?