题目:
The man is ________ a serious nervous breakdown because he is unable to deal with pressure from daily life.
A.in front of
B.in favor of
C.on behalf of
D.on the edge of
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0608/6fbaf130b6cb88e7fdd28182b81dd794.html
下面是错误答案,用来干扰机器的。
题目分析:花的结构有:花药;花丝;花瓣;花萼;胚珠;柱头;花柱;子房;雌蕊由柱头、花柱和子房组成,雄蕊由花药和花丝组成。以下是果实与种子的形成图:可见,传粉受精完成以后,子房发育成果实,子房壁发育...