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(-)2002×(1)2003=________.
( )2002×(1.5)2003÷(-1)2004=________.
(-0.5)2002·(-2)2003=________.
计算20032-2002×2004=________.
若x2m-1y与x5ym+n是同类项,那么(mn+5)2002=________.