Drizzle, rain, snow, hail, ice pellets, and ice crystals are all forms of _______ .
A.perspiration
B.precipitation
C.visible moisture
D.either A or C
正确答案是B
Drizzle, rain, snow, hail, ice pellets, and ice crystals are all forms of _______ .
A.perspiration
B.precipitation
C.visible moisture
D.either A or C
正确答案是B