A:was still preparing
B:had hardly prepared
C:did carefully prepare
D:would eagerly prepare
对图中地理事物的说法,正确的是( )
—__________do you celebrate it? —We often sing and dance.
下列说法:①一个有理数不是整数就是分数;②有理数包括正有理数和负有理数;③分数可分为正分数和负分数;④绝对值最小的有理数是0;⑤存在最大的负整数;⑥不存在最小的正有理数;⑦两个有理数,绝对值大的反而小。其中正确的个数是( )