P163 CEJFAX 163 Fri 13 May 21:15/47       WORLD   CHINA RELEASES FIVE DISSIDENTS   China, fighting to keep its   favourable trading status with the   United States, has released five   religious dissidents.     But police in Shanghai have   arrested two activists five weeks   before the anniversary of the   Tiananmjn Square massacre.     The authorities said the diu3idents   had been freed bjcausj they had   been "amenable to discipline".     The US will decide whjthju to rdnjw   China's trade status bz 3 June.   Home 110 Politics 130 Would 160 Next News Home News Summaries CityHjads