有关全国性的重大政策问题，只有党中央有权作出决定。
参考答案：对
若一个球的半径为1，A、B为球面上两点，且|AB|=1，则A、B两点的球面距离为______．
_______,but he still could not understand it.
A．He had been told many times
B．Having been told many times
C．Told many times
D．Although he had been told many times
