历史兴趣小组总结历史课本七年级上册各历史朝代的特征，其中应属于三国两晋南北朝的特征为[ ]

A．中华文明的起源

B．国家的产生和社会变革

C．统一国家的建立

D． * * 的分立与民族融合

On a certain day it took Bill three times as long to drive from home to work as it took Sue to drive from home to work. How many Kilometers did Bill drive from home to work ？（）

(1)Sue drove 10 kilometers from home to work, and the ratio of was the same for Bill and Sue that day.

(2)The ratio of for Sue that day was 64 kilometers per hour.

A．条件(1)充分，但条件(2)不充分．

B．条件(2)充分，但条件(1)不充分．

C．条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．

D．条件(1)充分，条件(2)也充分．

E．条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．