实验1：阔叶（雌）×窄叶（雄）→子代雌株全为阔叶，雄株全为阔叶
实验2：窄叶（雌）×阔叶（雄）→子代雌株全为阔叶，雄株全为窄叶
A：实验1子代雌雄杂交的后代不出现雌性窄叶植株
B：实验2结果说明控制叶型的基因在X染色体上
C：实验1，2子代中的雌性植株基因型相同
D：仅根据实验2无法判断两种叶型的显隐性关系
Liu Maodan
Twelve years old
China
Dear Xiaohong,
You are a lovely girl. We are in the same class in the primary school. We always have a great time at school. You are my good friend. You always help me in English. Thank you very much! I will remember you forever. Good luck for the future!
Yours,
Liu Miaodan
写出近义词。
乐意—____ 友好 —____ 凶险 —____
呼啸—____ 袭击 —____ 迅速 —____
自动电热水壶
型号
ZDH1008
电源
220V 50H
额定功率
1100W
容量
800ml
编号
H8017664
