问题
选择题
________ of the trees are planted by the students in our school in the park. [ ]
A. Two-third
B. Two-thirds
C. Second-thirds
D. Two-threes
答案
答案：B
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________ of the trees are planted by the students in our school in the park. [ ]
A. Two-third
B. Two-thirds
C. Second-thirds
D. Two-threes
答案：B