A:非洲、欧洲分界线是A
B:纬度高的是A
C:航运繁忙的是B
D:国际日期变更线穿过B
已知曲线C:x23﹣y2=1的左右焦点分别为F1F2,过点F2的直线与双曲线C的右支相交于P,Q两点,且点P的横坐标为2,则PF1Q的周长为( )
⑴This is a photo of Hainan. ____
⑵I got to school by car yesterday.____
⑶Beijing is in the north of China.____
⑷The mountains are really beautiful.____
⑸I went to England last year.____
x+0.5x=6
x=____
_____ do you think_____ this new house?