问题
选择题
In ________ preparation for Shenzhou Ⅶ, scientists need ________ knowledge of weather changes.[ ]
A. the; the
B. a; /
C. /; a
D. the; a
答案
答案：C
搜题请搜索小程序“爱下问搜题”
In ________ preparation for Shenzhou Ⅶ, scientists need ________ knowledge of weather changes.[ ]
A. the; the
B. a; /
C. /; a
D. the; a
答案：C