A new diagnosis and treat ASIC for red-green color weak is designed, which uses additive color mixture rule to diagnose quantificationally red-green color weak( RGCW), and uses mental rotation experiment to cure color visual defects, and with CPLD to implement ASIC and apply.

There are various features of disadvantaged roles polite speech in power relationship,such as courteous attitude;frequent "polite speech";concurrent use of "positive politeness" and "negative politeness";not taking up one s shortcomings directly;paying more attention to direct relations with cautious and solemn words;not scrambling for discourse domination etc.