①把杯子倒过来,水不会往下流。
②在太空里,咳嗽一声就会可能后退几步。
③李时珍在治病的时候注意积累经验。李时珍到各地去采药。
④我们小心地跳到狗的身上,我们可以到很远的地方去旅游。
②因为在太空里,所以咳嗽一声就会可能后退几步。
③李时珍不但在治病的时候注意积累经验,还到各地去采药。
④如果我们小心地跳到狗的身上,就可以到很远的地方去旅游。
牛的无角基因对有角基因(b)为显性。一个有角母牛和无角雄牛杂交,生了一个有角小牛,则雄牛的基因组成是()
如图是人们常见的几种动物,请分析回答:
根据表格内容, 选择正确答案。
(B)
Wang Wei
I can't sing or dance. I can play the guitar. But I couldn't play it three years ago.
Alice
I can sing and dance. I can also play the piano. When I was six, I couldn't play the piano at all.
James
I can swim and cook. I can't draw pictures. I could swim when I was five years old.
Liu Fang
I can perform ballet and dance to disco. I can also sing English songs. But I couldn't sing English songs two years ago.