单选题
If tank X contains only gasoline, how many kiloliters of gasoline are in tank X?
(1)If
of the gasoline in tank X were pumped out the tank would be filled to 
(1)If
of the gasoline in tank X were pumped out the tank would be filled to
【正确答案】
C
【答案解析】[解析] 很明显，(1)和(2)单独都不充分。设油罐X的容量为a千升，则根据(1)可得油罐X中的汽油为其容量的
，即为
千升；再根据(2)可知0.75千升的汽油占油罐容量的
，即为千升；再根据(2)可知0.75千升的汽油占油罐容量的