OG13-2求大神帮忙！

qsjvicky

OG13-2 Manufacturers rate batteries in watt-hours; if thev rate the watt-hour higher, the longer the battery can be expected to last. (A) if they rate the watt-hourhigher,the longer (B) rating the watt-hour higher, it isthatmuch longer (C) the higher the watt-hour rating, the longer (D) the higher the watt-hour rating, it is that much longerthat (E) when the watt-hour rating is higher, the longer it is

正确选项是c
我查了rate 的意思有vt.估价； 值得； 责骂； 定级

vt.& vi.认为，把…算作

vi.被评价； 被认为； 被列入； 申斥
为什么我觉得这里不应该用rating而应该用rated，因为watt-hour不能自己出发完成动作呀？