more thsn two ___years ago,people knew little about the universeA thousands B thousandC thousand of D thousands of哪一个是正确答案 为什么?

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morethsntwo___yearsago,peopleknewlittleabouttheuniverseAthousandsBthousandCthousandofDthousandsof哪一个

more thsn two ___years ago,people knew little about the universeA thousands B thousandC thousand of D thousands of哪一个是正确答案 为什么?
more thsn two ___years ago,people knew little about the universe
A thousands B thousand
C thousand of D thousands of
哪一个是正确答案 为什么?

more thsn two ___years ago,people knew little about the universeA thousands B thousandC thousand of D thousands of哪一个是正确答案 为什么?
应该选b
thousand 是个数量词 不用加s
thousands of years 是上千年的,没有确指.

b