问题
选择题
We are using ___ of law ______ great effect.
A．the arms; in
B．the weapons; of
C．the weapon; with
D．the arm; by
答案
答案：C
考查名词及介词。the weapons of law=法律武器。weapons泛指一切武器，包括具体和抽象的arms一般指武装。with effect 固定搭配，意思是具有成效。故选C。