【单选题】
The United States (is composed of) fifty states, (two of those) are (separated) from the (others) by land or water.
A.is composed of
B.two of those
C.separated
D.others
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根据网考网移动考试中心的统计,该试题:
21%的考友选择了A选项
73%的考友选择了B选项
4%的考友选择了C选项
2%的考友选择了D选项