[语法] OG13:Manufacturers rate batteries in watt-hours...
Manufacturers rate batteries in watt-hours; if they rate the watt-hour higher, the longer the battery can be expected to last. A.if they rate the watt-hour higher, the longer B.rating the watt-hour higher, it is that much longer C.the higher the watt-hour rating, the longer D.the higher the watt-hour rating, it is that much longer that E. when the watt-hour rating is higher, the longer it is
