Tom and Jenny are in the same school. And _________ like sports very much.
A:they
B:them
C:their
D:theirs
下列关于基因和染色体关系的叙述,正确的是( )
有35颗糖,按淘气、笑笑、丁丁、冬冬的顺序,每人每次发一颗,想一想,____分到最后一颗。
已知A={x|x2-2x>0},B={x|x-3x-1<0},则A∪B=( )