The research scientists often meet with problems requireing

The research scientists often meet with problems requireing The research scientists often meet with problems( )a new typ When I meet with difficulties ,the teacher often encourages 关于meet with problems的问题 Scientists are doing research on the way, how children learn We will meet with some problems,although everything ______ ( It~not~p()~to~meet~with~such~problems. We will meet with some problems,although everything works ou My friend and I often meet in the new park _ with each other 英语翻译To meet the demand for production and precision,research 怎样讲解All the scientists present thought the research of（ ） in The result of the research may＿＿＿ useful for scientists in m