一个或多个联锁区SICAS故障时，由（）决定是否采用站间电话行车法组织行车。
A、主任调度员
B、行车调度员
C、站长
D、值班站长
参考答案：A
She had golden hair when she was a child, but_________ she got older and older, her hair went darker and darker.
A．while
B．when
C．after
D．as
加油卡圈提的前提条件是（）。
A.卡钱包余额不为0
B.卡帐余额不为0
C.卡帐余额等于卡钱包余额
D.额度帐余额不为0
