There ______ a number of students in our school. The number of the students ______ more than 7000.A.

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There ______ a number of students in our school. The number of the students ______ more than 7000.
A.is, areB.are, isC.is, isD.are, are

热搜:关于氨基酸代谢错误的论述是_________。