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