下列何种不属中枢性呕吐
A．颅内感染B．胃肠神经症C．脑血管疾病D．颅脑损伤E．癫痫
参考答案：B
Armed police and railway workers were removing snow from the track to _______ a train stuck near Jining in Inner Mongolia.
A．recover
B．free
C．protect
D．clear
居民汇出汇款可采用（）。
A、电汇
B、信汇
C、票汇
D、信用证
