在选定各因素的权重时，其权重和等于()。
A.1
B.2
C.10
D.100
参考答案：A
解析：各因素的权重时，其权重和等于1.
But when I got _______ the town ought to have been, all I found was a gas station．
A．where
B．which
C．what
D．that
