在区间[﹣1,1]上随机取一个数k,使直线y=k(x+3)与圆x2+y2=1相交的概率为( )
A:12
B:13
C:24
D:23
下列物产中, 有些是从西域传到内地的,它们是( )
①葡萄 ②石榴 ③苜蓿 ④核桃 ⑤水稻
When someone tells you that he is going to a place of interest, you should say “_____________”.