Could you tell to me something about their cultural background?
查看答案
There are always some people talk happily in the park
He gave to her some lovely flowers.
Match the words and phrases with their definitions according to Reading 2.
下列哪项不属于大数据的发展历程？
A. 成熟期
B. 萌芽期
C. 大规模应用期
D. 迷茫期
微信支付 
支付宝支付