The password for a bankbook has six digits (digits can be $$0$$). Mr. Wang forgets the first digit. The probability that he can get the first digit right on his first try is ． 
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∵ There are $$10$$ possible situations. However, there\textquotesingle s only one time for him to get the first digit right at the first try.  ∴ The probability that he can get the first digit right at the first try is $$\frac{1}{10}$$.  So $$\text{D}$$ is the answer. 