单选题American people are wonde

问题补充：

单选题Americanpeoplearewonderingwhetherthenewly-electedpresidentandhisadministrationwillkeepthenationsafeanddefendit_______anyterroristattackinthefuture.A.toB.onC.againstD.with

答案：

C解析考查介词。defend sb./sth. from/against sth.,表示“保护……免遭……”。