$$B_n$$=$$A_{n+1}$$-$$A_n$$,$$B_{n+1}$$-$$B_n$$=2.$$A_10$$=?
1：$$A_1$$=1,$$A_3$$=3
2：$$A_2$$=2,$$A_4$$=4
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AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
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BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
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CBoth statements TOGETHER are sufficient, but NEITHER one ALONE is sufficient.
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DEACH statement ALONE is sufficient.
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EStatements (1) and (2) TOGETHER are NOT sufficient.
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正确答案: D