A:interested;interesting
B:interesting;interesting
C:interesting;interested
D:interested;interested
藻类植物的结构特点是( )
Peter was so excited _______ he received the invitation to the important meeting.
如果方程组x=y+52x-y=5的解是方程2x﹣3y+a=5的解,那么a的值是( )
已知点A(﹣1,1),B(﹣4,5),若BC→=3BA→,则点C的坐标为( )