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【单选题】
民航允许持票旅客每人按规定免费托运的行李重量为:头等舱( )千克,公务舱( )千克,经济舱( )千克。A.
40 30 20
B.
50 40 20
C.
30 20 20
D.
50 40 30
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反馈参考答案：
举一反三
【判断题】On a line chart, the x-axis is also called the dependent axis because its values depend on those of the y-axis.
A.
正确
B.
错误
【单选题】Distance along a track line is measured on a Mercator chart by using the ______
A.
latitude scale near the middle of the track line
B.
longitude scales near the middle of the track line
C.
longitude scale at the midlatitude of the chart
D.
latitude or longitude scale at the middle of the scale
【简答题】During the day, you spend a lot of time running, jumping, laughing, eating, and talking. You use up a lot of energy(能量) , and by the end of the day you’re tired. Sleep gives your body a chance to rest...
【判断题】On a line chart, the x-axis is also called the dependent axis because its values depend on those of the y-axis.
A.
正确
B.
错误
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