电子商务中的瓶颈是______。
A．信息技术
B．管理方法
C．配送体系
D．商务标准
参考答案：C
It was the boy _____ had been in prison _____ stole the money.
A．who, where
B．that, how
C．who, that
D．that, which
现在日本的首都是东京，此地原名是[ ]
A．鸟羽
B．伏见
C．江户
D．平城京
