点P(x,y)的坐标满足xy>0且x+y>0,则点P在第______象限.
∵xy>0,
∴x,y同号,
又∵x+y>0,
∴x>0,y>0,
∴点P在第一象限.故答案填:一.
—What ________ exciting sports show!
—Yeah, I love this game.
A. a B. the C. an
患者,女,35岁。月经周期正常,唯月经量少、色红、质稠,经期鼻衄,量不多,色暗红,伴手足心热,潮热颧红,舌红少苔,脉细数。其证候是()
A.肝经郁火
B.阴虚内热
C.心肝火旺
D.阴虚阳亢
E.肺肾阴虚