大全 696

almarabbit01

1.       The Baldrick Manufacturing Company has for several years followed a policy aimed at decreasing operating costs and improving the efficiency of its distribution system.

(A) aimed at decreasing operating costs and improving

(B) aimed at the decreasing of operating costs and to improve

(C) aiming at the decreasing of operating costs and improving

(D) the aim of which is the decreasing of operating costs and improving（A）

(E) with the aim to decrease operating costs and to improve

答案A为什么不用aiming 而用aimed?

多谢!

rhod

From Longman:

- (be) aimed at doing something:

an initiative aimed at reducing road accidents