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【判断题】
电流大于0，说明参考方向与实际方向一致。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】影响瓦楞纸箱抗压强度的外部因素主要有（）、（）、（）、（）。
【单选题】Martin ______ his bike ______ accident this morning. [ ]
A.
felt off, by
B.
fell off, by
C.
fell down, by
D.
felt off, in
【单选题】The child ______ his bike and hurt himself. [ ]
A.
fall down
B.
fall off
C.
fell down
D.
fell off
【单选题】The boy the bike, and it made his parents worried. [ ]
A.
fell off
B.
fell down
C.
fell from
D.
fell
【单选题】Speaker A: Jenny fell off and hurt her right leg. Speaker B: ____
A.
I’m sorry to hear that.
B.
I’m feeling bad.
C.
I think so.
【简答题】影响瓦楞纸箱的抗压强度因素有哪些？
【单选题】《离骚》中有好多人物,但下列四项中有一项不是( )
A.
在诗歌中被称为灵修、荃、哲王的君主
B.
楚辞作家宋玉
C.
劝说作者的最亲近的人叫女媭
D.
为作者占卜降神的灵氛和巫咸
【单选题】-- Jenny fell off the bus and hurt herself. -- .
A.
I'm sorry to hear that
B.
It doesn't matter
C.
It's a pleasure
D.
Thank you
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