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17、 ______,there must have been 20000 people there, that is, there are______20000 people there.

A. On total; a total of      B. In total; a total of

C. In total; the total of    D. On total; the total of

17、A

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 ______,there must have been 20000 people there, that is, there are______20000 people there.

A. On total; a total of      B. In total; a total of

C. In total; the total of    D. On total; the total of

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