根据《UCP500》规定，若信用证在货物数量方面有伸缩，而金额方面没有，该证货物总值则不能超过信用证金额。( )
参考答案：对
Help is needed for families _________ homes were destroyed during the earthquake.
A．which
B．when
C．whose
D．where
综合重合闸中接地判别元件，一般由零序过电流或零序过电压继电器构成，它的作用是区别出非对称接地短路故障。
