单项选择题
A.finding opportunities for risk-free investingB.finding repeating trends and patterns in pricesC.changing prospects for earnings growth of particular firms or industriesD.forecasting technical regulatory changes
They overcame all the difficulties and fulfilled the pl...
单项选择题They overcame all the difficulties and fulfilled the plan two months ahead of time，which was something we（）.
A.didn't expectedB.haven't expectedC.hadn't expectedD.wouldn't expected
To avoid traffic accidents，every driver must follow tra...
To avoid traffic accidents，every driver must follow traffic rules.（）
A.避免B.导致C.报道
（）good advice it is！It helps me a lot.A.WhatB.What aC.H...
单项选择题（）good advice it is！It helps me a lot.
A.WhatB.What aC.HowD.How a
