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\left. \begin{array} { l l } { 1.0 \times 10 ^ { - 3 } } & { ( 2 ) } & { 1.0 \times 10 ^ { - 6 } } \\ { 1.0 \times 10 ^ { - 8 } } & { ( 4 ) } & { 1.0 \times 10 ^ { - 11 } } \end{array} \right.

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