求教og13 sc 22

STshadow

22. Plants are more efficient at acquiring carbon than are fungi, in the form of carbon dioxide, and converting it to energy-rich sugars.

(A) Plants are more efficient at acquiring carbon than are fungi,

(B) Plants are more efficient at acquiring carbon than fungi,

(C) Plants are more efficient than fungi at acquiring carbon,

(D) Plants, more efficient than fungi at acquiring carbon,

(E) Plants acquire carbon more efficiently than fungi,
正确选项c中为何比较的主体是plants与gungi而不是plants的吸收carbon效率与fungi吸收carbon的效率

zymxhhx

因为都是at acquiring carbon这个方面的比较，所以比较主体就是代表了比较两个主体在获取carbon上的不同吧。