A:X>Y>Z
B:Y>X>Z
C:Z>X>Y
D:X>Z>Y
It there anyone in your class ______ family is in the country?
某人向正东方向走xkm后,向右转150°,然后朝新方向走3km,结果他离出发点恰好是3km,那么x的值为( )