558.One of four babies are now born to mothers aged thirty years or more, compared with just one of six born in 1975. (A) of four babies are now born to mothers aged thirty years or more, compared with just one of six born (B) of four babies is now born to a mother whose age is thirty or older, compared to just one of six babies who were born (C) baby in four are now born to mothers aged thirty or older, compared to just one in six (D) baby in four is now born to a mother aged thirty or older, ?compared with just one in six(D) (E) baby in four is now born to mothers aged thirty years or more, compared to just one in six 我选了A,我想知道 or more 和older 怎么区分,我认为 aged more 更合适,怎么会aged older呢? |