消化道肿瘤最常用的疗效考察指标是（）
A.AFP
B.CEA
C.PSA
D.CA153
E.CA125
参考答案：B
其最佳治法为
A．活血化瘀，温经止痛B．补血益气，缓急止痛C．清热解毒，活血止痛D．补血益气，温经止痛E．以上都不是
There is no doubt ________ international cooperation is key to ________ with cybercrime.[ ]
A．whether; doing
B．that; dealing
C．whether; dealing
D．that; doing
