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【单选题】
1954年北京坐标系是新中国成立后确定的国家大地坐标系，是与()1942年坐标系联测经我国东北传算过来的。A.
前苏联
B.
美国
C.
德国
D.
英国
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举一反三
【单选题】Immigration into the U.S. over the past century has caused the percentage of immigrants in the U.S. population to
A.
fall steadily over the entire century.
B.
rise steadily over the entire century.
C.
fall steadily until the 1970s and increase thereafter.
D.
remain relatively constant over the time period.
E.
rise steadily until the 1970s and fall thereafter.
【简答题】The percentage of...is s____________ l_____________ (s___________) than that of... ...的比例比...的比例略高(低)。
【简答题】A．The percentage is high. B．The percentage is low. C．The amount of the population is not so low. D．It is not mentioned in the passage.
【单选题】The general formula used for calculating the net national loss from a trade barrier as a percentage of GDP may fail to account for : a. the production effect of the trade barrier . b. the consumption ...
A.
B.
C.
D.
D
【简答题】A．The percentage is high. B．The percentage is low. C．The amount of the population is not so low. D．It is not mentioned in the passage.
【简答题】走一会儿神 be distracted for a moment
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