氮肥充足可增加小麦穗小花分化数,()施肥可减少退化小花数。
A、二棱期
B、单棱期
C、药隔期
D、四分体期
参考答案:C
除息肝风外,又能化痰开窍的中药是()
A.蝉蜕
B.牛黄
C.羚羊角
D.全蝎
E.僵蚕
She said she would work it out herself, ________ ask me for help.
A.and not to
B.but not
C.and prefer not
D.rather than