The lady was ______ happy______ she couldn't say a word.
A:too, to
B:so, that
C:so that, /
D:very, because
北京到广州的直线距离是1800千米,在地图上两地距离是6厘米,此图的比例尺是( )
一株“元帅”苹果树开花后,“去雄”并授予“黄香蕉”品种苹果的花粉,所结的果实的口味应是( )。