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【判断题】
如果有一个不变因子是1,则其后面的不变因子均为1。A.
正确
B.
错误
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举一反三
【单选题】Alaska 1 In 1959 Americans welcomed Alaska into the Union as the 49th state, symbolizing a change of attitude from that held in 1867, when the peninsula was purchased from Russia. Then, most Americans...
A.
Rich Resources of the State
B.
Connections with the Outside World
C.
Transportation Problem
D.
The Natives of the Land
E.
Cold Climate
F.
Land and Population Paragraph 3 ______
【简答题】A．Because gold was found in Alaska. B．Because Alaska has an abundance of seafood. C．Because Alaska proved rich in oil and minerals. D．Because Alaska is bordered by Yukon.
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