大全799

1.        The owner of Steele’s Grocery in Osage, Ohio, saved $600 monthly on heat during the winter by putting all his refrigerator air compressors together in an insulated compartment, then installing two fans and a duct that carried waste heat from the compressors into the main part of the store.

(A) then installing two fans and a duct that carried

(B) then he installing two fans and a duct that carried

(C) then two fans were installed with a duct that carried

(D) installing two fans, and then carrying through a duct（A）

(E) installing two fans, and a duct carrying

答案我没有问题,我想问的是then installing two fans and a duct that carried会不会引起歧异,two fans 和a duct that .. 并列或two fans 和a duct并列,共同作为that引导的定语从句的先行词.

因为adj + n. and + n.这种结构会引起adj修饰对象不清的错误.

我觉得即便理解为two fans and a duct  carried从逻辑上也是通的，所以无歧义

我觉得adj + n. and + n.这种结构会引起adj修饰对象不清的错误，但是 n. and + n.+that。。。好像不会有歧义，例如大全802：

802). The peaks of a mountain range, acting like rocks in a streambed, produce ripples in the air flowing over them: the resulting flow pattern, with
            crests and troughs that remain stationary although the air that forms them is moving rapidly, are known as “standing waves.”

答案是：C

主谓一致排除ABD

E：stationary crests and troughs 就是adj + n. and + n.这种结构会引起adj修饰对象不清的错误

C：crests and troughs that remain stationary 是 n. and + n.+that。。。是正确的