对时间仓促来不及买票并经站、车同意上车的人员或儿童，只补收票价，（）手续费。
参考答案：核收
________ you prefer, I'll give it to you. But we haven't any other models for you to choose from.
A．Whatever
B．Whenever
C．Whichever
D．However
慢性宫颈炎出现腰骶部疼痛是由于（）
A.宫颈腺体囊肿
B.宫颈息肉
C.宫颈肥大
D.炎症扩散到盆腔
E.宫颈外翻
