1. Given $A=-\frac{2001 \times 2002 \times 2003}{2004 \times 2005 \times 2006}$,
$$
\begin{array}{l}
B=-\frac{2001 \times 2003 \times 2005}{2002 \times 2004 \times 2006}, \\
C=-\frac{2001 \times 2003 \times 2006}{2002 \times 2004 \times 2005} .
\end{array}
$$

Then the size relationship of $A$, $B$, and $C$ is $(\quad)$.
(A) $A>B>C$
(B) $C>B>A$
(C) $B>A>C$
(D) $B>C>A$
1. A.

Obviously $AB$. Similarly, $A>C, B>C$.