已知圆C：x²＋y²＋x－6y＋m＝0与直线l：x＋2y－3＝0.

(1)若直线l与圆C没有公共点，求m的取值范围；

(2)若直线l与圆C相交于P、Q两点，O为原点，且OP⊥OQ，求实数m的值．

— It was cloudy yesterday.

—_________ today.

A．So it is

B．So is it

C．Neither it is

D．Neither is it