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([lemma=still | lemma=be] □ □)? □
([lemma=still | lemma=experience] □ □)? □
This eliminates a lot of feed validation errors and problems in specific RSS feed consumers . PathControl is a tool used by ISPs and enterprises to eliminates network congestion problems caused by Internet brownouts that result from excessive latency and loss . Meanwhile , droughts and excessive grazing have exacerbated the situation , and Kenya now faces serious problems of declining land productivity and degradation of the natural environment . For problem sets , limited collaboration in planning and thinking through solutions to homework problems is allowed , but no collaboration is allowed in writing up solutions . For example , if you ’ re thinking about a telephone order-taking process , your customer will value a quick answer to his or her call ; a polite manner ; efficient taking of order details ; fast and knowledgeable answering of questions ; and an efficient and quick resolution to any problems that arise .