在电动势的测定中,检流计主要用来检测( )。
A.电桥两端电压
B.流过电桥的电流大小
C.电流对消是否完全
D.电压对消是否完全
参考答案:C
On December 26, 2004, a terrible tsunami happened in the Southeast Asia, _________ many people.
A.killing
B.had killed
C.killed
D.having killed
开放型基金必须上市。