In _____ preparation for the launching o
题型:选择题
问题:
In _____ preparation for the launching of Shenzhou Ⅶ, scientists need ______ knowledge of weather changes.
A.the; the
B.a; ∕
C.∕; a
D.the; a
In _____ preparation for the launching of Shenzhou Ⅶ, scientists need ______ knowledge of weather changes.
A.the; the
B.a; ∕
C.∕; a
D.the; a