问题
The pull of gravity depends upon size, _______, upon mass. An object, whether its mass is big or small on the earth, ________in weightless conditions, like the outer space.[ ]
A: or rather; floats
B: rather than; flies
C: to be more exact; flies
D: other than; floats
B: rather than; flies
C: to be more exact; flies
D: other than; floats
正确答案是：
