._____trees have been cut down so droughts and floods always happen.

问题描述:

._____trees have been cut down so droughts and floods always happen.
_____trees have been cut down so droughts and floods always happen.
A.One or two
B.A thousand and a hundred
C.Hundreds and thousands of D.Hundred and thousand of

C为什么选C这是固定搭配,成千上万的