A:黄色圆粒∶黄色皱粒∶绿色圆粒∶绿色皱粒=9∶3∶3∶1
B:黄色圆粒∶黄色皱粒∶绿色圆粒∶绿色皱粒=1∶1∶1∶1
C:黄色圆粒∶绿色圆粒=3∶1
D:黄色圆粒∶绿色圆粒=1∶1
函数f(x)=x+lnx﹣2的零点所在区间是( )
B
Daming is my good friend.I like playing with him. He is1a city,2now he is in the countryside(乡村)3his parents. He likes4He can swim and play table tennis. His house is next5a river. It's not a tall6There are three7in his house. In front of the house, 8are some flowers. There are some trees behind his house. This is his room.There9a bed and a desk in it. He can10his homework on the desk. He likes his house.
下列关于核酸的叙述不正确的是( )