雷诺数是可以判别流体的()的依据。
参考答案:运动状态
I would like .[ ]
A. a water
B. a glass of waters
C. any water
D. some water
Sandy is wearing ________ today.
A.a pair of red long boots
B.a long pair of red boots
C.a pair of long red boots
D.a pair of boots long