已知|a|=3，|b|=2，其中b＜0，则a+b=[ ]
A．-1
B．1或-5
C．-1或1
D．-1或-5
B．
______side of the street is lied with different shops, _______ of which sell electronic products.
A．Both; both
B．Either; all
C．Neither; either
D．Either; both
国际地役
