Scientists across the world agree that this is an invention of _______ great significance, _______ invention that will greatly change human life.
#9551
A
a; the
B
a; an
C
/ ; the
D
/ ; an
推荐题目
______ history of the Qing Dynasty is _____ history of suffering, also one of being bullied and invaded（欺侮和侵略）．
#8931
A
不填; a
B
The; the
C
The; a
D
The; 不填
As _______ general rule, the working temperature of the installation (设备) is _______ more important consideration than the working pressures.
#9145
A
a; /
B
the; /
C
the; a
D
a; a
The old man leads ______happy life now, but he will never forget ______hard time when he was poor.
#8996
A
the, a
B
/; the
C
the; /
D
a, the
In order to find _____ better job, he decided to study ____ second foreign language.
#8246
A
the; a
B
a; a
C
the; the
D
a; the
There is no power like _____ power of confidence, and there is no student as competitive as _____ student who trusts his own abilities.
#8696
A
the; a
B
a; the
C
/; a
D
the; /