31. I love the weekend,because I_____ get up early on Satur

31. I love the weekend,because I_____ get up early on Saturdays and Sundays.A.n

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如图所示,电阻不计、间距为l的光滑平行金属导轨水平放置于磁感应强度为B、方向竖直向下的匀强磁场中,导轨左端接一定值电阻R

如图所示,电阻不计、间距为l的光滑平行金属导轨水平放置于磁感应强度为B、方向竖直向下的匀强磁场中,导轨左端接一定值电阻R。质量为m、电阻为r的金属棒MN置于导轨

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7.What have the two speakers decided to do now?

7.What have the two speakers decided to do now?A.Go shopping. B.Take a walk. C.H

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1.What does the man want to borrow?

1.What does the man want to borrow?A.A pencil. B.An eraser. C.A pen.

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请回答62题__________

请回答62题__________

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