数据分析的具体任务包含以下哪些内容?
A. 流量分析
B. 流量效率分析
C. 站内数据分析
D. 用户特征分析
I am going away on business next month, and I want to know about our ________________ on travel expenses.
A. politics
B. polish
C. policy
D. police
Cash cannot be _________________ in advance for business travel, so you have to pay out of your own pocket.
A. drama
B. drag
C. dramatic
D. drawn
You have to save all the __________________ from your trip if you want to get your money back.
A. receipt
B. receit
C. receive
D. received