Which two valid declarations of a char?() [" Char ch = “a”;"," Char ch = ‘\\’ ‘;"," Char ch = ‘cafe’;"," Char ch = “cafe”;"," Char ch = ‘\\ucafe’;"," Char ch = ‘\\u10100’;"," Char ch = (char) true;"]
变换(Transformation)
中共中央、国务院、中央军委决定,授予陈冬同志()荣誉称号并颁发“三级航天功勋奖章”。 ["航天功勋奖章","航天英雄","英雄航天员","荣誉航天员"]
侵权行为
简述证人证言的特点。
简述活性污泥丝状菌膨胀的成因和机理。