人类目前观测到的宇宙部分称为银河系.____(判断对错)
仿照例子写出三句以上完整而有意义的英文句子,要求将表格中提供的天气、人物能够做的事情和想做的事情,完整而准确地表达出来。
Details
Names
Weather
Can do
Want to do
例: It's sunny today.
Tina can fly a kite.
She wants to read a book.
She wants to draw a picture, too.
请你用英语描述你同桌的衣着。
This is ……. He/ She……. Her/ His name is……. She/ He is……years old. Look, he's/she's is wearing…….
某植物的花色受不连锁的两对基因A/a、B/b控制,这两对基因与花色的关系如图所示,此外,a基因对于B基因的表达有抑制作用。现将基因型为AABB的个体与基因型为aabb的个体杂交得到Fl,则F1的自交后代中花色的表现型及比例是( )