上位子房下位花
参考答案:
子房上位花被下位,子房仅以底部和花托相连,萼片,花瓣,雄蕊着生的位置低于子房,如刺槐。
72. At the beginning, I had some difficulty with my English, and my teacher pulled me ______.
A.down
B.over
C.up
D.Through
什么是税法税收与税法之间有什么联系