搜题
王老师:19139051760(拨打)
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第1题

Among the five Great Lakes, only _____ is wholly withithe United States.
·Erie
·Superior
·Michigan
·Ontario
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第2题

The _____ were the original inhabitants iAmerica.
·blacks
·Indians
·Puerto Ricans
·British
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第3题

NaCl型化合物可看成是配位数为6的立方面心结构，那么AB型化合物离子半径比(r+/r.) 可能为下列何种情况()。+ A >0.225 B <0.225 C >0.414 D <0.414+
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第4题

The United States today is the _____ largest country isize ithe world.
·third
·fifth
·fourth
·second
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