C
解析分析:利用復(fù)數(shù)的代數(shù)形式的乘除運(yùn)算,先求出

=-i.所以復(fù)數(shù)

(i為虛數(shù)單位)的共軛復(fù)數(shù)為i,由此能求出復(fù)數(shù)

(i為虛數(shù)單位)的共軛復(fù)數(shù)的虛部.
解答:
=

=

=-i.∴復(fù)數(shù)

(i為虛數(shù)單位)的共軛復(fù)數(shù)為i,∴復(fù)數(shù)

(i為虛數(shù)單位)的共軛復(fù)數(shù)的虛部為1.故選C.
點(diǎn)評(píng):本題考查復(fù)數(shù)的代數(shù)形式的乘除運(yùn)算,是基礎(chǔ)題.解題時(shí)要認(rèn)真審題,仔細(xì)解答.