（安徽安庆2009教学质量监测）In preparation for the launching of Shenzhou VII, 4、scientists need knowledge of weather changes.
#10256
A
the; the
B
a; /
C
/; a
D
the; a
推荐题目
It is acknowledged that______shortest distance between persons is _______ sincere smile.
#8739
A
a; the
B
the; a
C
a;不填
D
the;不填
In_____ communication, a smile is usually _____ strong sign of friendly attitude．
#8726
A
the; 不填
B
a; the
C
不填; a
D
the; a
As the most acute one in _______ history of all epidemics, the Spanish Flu had ______ tendency to strike the young and fit rather than the old.
#9058
A
不填；the
B
不填; a
C
the; 不填
D
the; a
—How do you like his plan?—It may be so in _ ____ theory, but how will it work in ______practice?
#8293
A
the; the
B
／; ／
C
the; ／
D
／; the