There are many toys on the table. You can take __________.
A:it
B:one
C:this
D:that
下列关于能量的说法中,正确的是( )
—It is so cold today.
—Yeah.You'd better not ______ your coat when you are in the classroom.
假如一个性状总是由父亲直接传给儿子,又由儿子直接传给孙子.那么控制这个性状的基因最可能的位置是( )