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1.______ martyrs have heroically laid down their lives for the people. a. Thousand upon thousand of b. Thousand and thousands of c. Thousands upon thousands of d. Thousand and thousand of 2.They received ______ of letters about...

化为基数词:1987、343456、55647980one thousand nine hundred and eighty-seven three hundred and forty- three thousand four hundred and fifty -sixfifty-five million six hundred and forty-seven thousand eighty 化为序数词:one two ...

13~29 C A C D B B B D B C B A A B C B A

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