——Jane Zhang is going to hold a concert here in July. ——Really? ________ exciting news!
A:How
B:What an
C:What
设F1,F2是双曲线x2-y224=1的两个焦点,P是双曲线上的一点,且3|PF1|=4|PF2|,则△PF1F2的面积等于( )
下列诸侯国中,不属于战国七雄的是( )