應(yīng)該選b
thousand 是個(gè)數(shù)量詞 不用加s
thousands of years 是上千年的,沒(méi)有確指.
more thsn two ___years ago,people knew little about the universe
more thsn two ___years ago,people knew little about the universe
A thousands B thousand
C thousand of D thousands of
哪一個(gè)是正確答案 為什么?
A thousands B thousand
C thousand of D thousands of
哪一個(gè)是正確答案 為什么?
英語(yǔ)人氣：981 ℃時(shí)間：2019-10-17 06:07:28
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