Maintain the market share as the market leader , may take an activity in defense tactics as follows : position defense , flank defense , preemptive defense , counteroffensive defense , contraction defense and mobile defense 作為市場的領(lǐng)先者,在防衛(wèi)戰(zhàn)略上主要有以下幾方面內(nèi)容:地位防衛(wèi)、側(cè)翼防衛(wèi)、先發(fā)制人、防守反擊、收縮和機動進攻。