Trees have grown and died for__A.millons of yea B.millons of yearsC.millons years选哪个?为什么?

题目

Trees have grown and died for__A.millons of yea B.millons of yearsC.millons years选哪个?为什么?
别应付我!必须回答"为什么"!

答案

B,millons of成千上万
millions of 的用法
例句：This is because each year millions of smokers die from the habit.
此句中,millions of 解释为“数以百万”的.
但是,如果具体地说出二百万、五百万等,则 million 后没有 s ,也不用 of:
例如：two million smokers.
高考题
1.__ people in the world are sending information by E-mail every day.(2001 上海)
A.Several million B.Many millions C.Several millions D.Many million
(A.)
2.Shortly after the accident,two __ police were sent to the spot to keep order.(MET.1992)
A.dozen of B.dozens C.dozen D.dozens of .C.